Publications



#2024

  1. Keiichi Yamaguchi, Joji Mima, Kichitaro Nakajima, Hiroki Sakuta, Kenichi Yoshikawa, and Yuji Goto, "Accelerated amyloid fibril formation at the interface of liquid-liquid phase separated droplets by depletion interactions", Protein Sci. in press (2024).
  2. Natsumi Fujiwara, Takaki Matsumoto, Akira Nagakubo, Shao Ying Tan, Masahiro Kino-oka, and Hirotsugu Ogi, "Time course observation of cross sectional shape of iPS cell colony using ultrasound spectroscopic imaging", npj Biol. Phys. Mech. in press (2024).
  3. Akira Nagakubo, Tokiya Matsukura, and Hirotsugu Ogi, "Sensitivity enhancement of hydrogen-gas sensor by sub-nm Au on Pd surface of a wireless quartz resonator", Jp. J. Appl. Phys. 63, 074002 (2024).
  4. Kichitaro Nakajima*, Tomoki Ota*, Hajime Toda, Keiichi Yamaguchi, Yuji Goto, and Hirotsugu Ogi, "Surface Modification of Ultrasonic Cavitation by Surfactants Improves Detection Sensitivity of α-synuclein Amyloid Seeds", ACS Chem. Neurosci. 15, 1643-1651 (2024). (*equally contributed)
  5. Hirotsugu Ogi "Ultrasensitive wireless quartz-crystal-microbalance (QCM) bio/gas sensors", Jp. J. Appl. Phys. 63, 040802 (2024). (invited review paper)
  6. Natsumi Fujiwara, Shao-Ying Tan, Takaki Matsumoto, Akira Nagakubo, Masahiro Kino-oka, and Hirotsugu Ogi "Development of a focused-ultrasound spectroscopic-imaging system combined with optical imaging for applying mechanical stimulation on living cells and possibility of selective stimulation for nucleus", Jp. J. Appl. Phys. 63, 03SP65 (2024).
  7. Suguru Yamamoto, Keiko Yamamoto, Yoshitoshi Hirao, Keiichi Yamaguchi, Kichitaro Nakajima, Mami Sato, Miho Kawachi, Mio Domon, Kei Goto, Kentaro Omori, Noriaki Iino, Hisaki Shimada, Ryuzi Aoyagi, Isei Ei, Shin Goto, Yuji Goto, Fumitake Gejyo, Tadashi Yamamoto, and Ichiei Narita "Mass spectrometry-based proteomic analysis of proteins adsorbed by hexadecyl-immobilized cellulose bead column for the treatment of dialysis-related amyloidosis", Amyloid, 1-11 (2024).
  8. Yuji Goto, Kichitaro Nakajima, Suguru Yamamoto, and Keiichi Yamaguchi, "Supersaturation, a critical factor underlying proteostasis of amyloid fibril formation", J. Mol. Biol. 168475 (2024).
  9. Takashi Takishita, Hiroyuki Takamatsu, and Hirotsugu Ogi, "Measurement of nonlinear three-wave interaction using shear-vertical-wave point-focusing electromagnetic acoustic transducers", Jp. J. Appl. Phys. 63, 03SP36 (2024).

10. Wenlou Yuan, Akira Nagakubo, Oliver B. Wright, and Hirotsugu Ogi, "GHz surface-wave phononic crystal biosensor using a Fano resonance at the bandgap edge", Jp. J. Appl. Phys. 63, 017006 (2024).

11. Hiroki Fukuda, Akira Nagakubo, Shigeyoshi Usami, Masayuki Imanishi, Yusuke Mori, and Hirotsugu Ogi, "Elastic constants of GaN grown by oxide-vapor-phase-epitaxy method", Appl. Phys. Exp. 17, 016501 (2024).

#2023

  1. Takehiro Tachizaki, Jeremy J. Baumberg, Osamu Matsuda, Motonobu Tomoda, Hirotsugu Ogi, and Oliver B. Wright, "Spectral analysis of amplitude and phase echoes in picosecond ultrasonics for strain pulse shape determination", Photoacoustics 34, 100566 (2023).
  2. Hiroki Fukuda, Akira Nagakubo, Oliver B. Wright, Kazuhiro Kyotani, and Hirotsugu Ogi, "Deep-Learning Assisted Resonant Ultrasound Spectroscopy for Cubic Solids", Phys. Rev. Appl. 20, 034048 (2023).(Accepted version is available.)
  3. Lianjie Zhou, Touko Hajiri, Kichitaro Nakajima, César Aguirre, Kensuke Ikenaka, Hideki Mochizuki, Keiichi Yamaguchi, Yuji Goto, and Hirotsugu Ogi, "Ultra-stiff amyloid-fibril network of α-synuclein formed by surface seeding reaction confirmed by multichannel electrodeless quartz-crystal-microbalance biosensor", ACS Sensors 8(7), 2598-2608 (2023).
  4. Chi-Jing Choong, Cesar Aguirre, Keita Kakuda, Goichi Beck, Hiroshi Nakanishi, Yasuyoshi Kimura, Shuichi Shimma, Kei Nabekura, Makoto Hideshima, Junko Doi, Keiichi Yamaguchi, Kichitaro Nakajima, Tomoya Wadayama, Hideki Hayakawa, Kousuke Baba, Kotaro Ogawa Toshihide Takeuchi, Shaymaa Mohamed Mohamed Badawy, Shigeo Murayama, Seiichi Nagano, Yuji Goto, Yohei Miyanoiri, Yoshitaka Nagai, Hideki Mochizuki, and Kensuke Ikenaka, "Phosphatidylinositol-3,4,5-trisphosphate interacts with alpha-synuclein and initiates its aggregation and formation of Parkinson’s disease-related fibril polymorphism, Acta Neuropathol., 145, 573-595 (2023).
  5. Lianjie Zhou, Fumihito Kato, Masumi Iijima, Tomoyuki Nonaka, Shun'ichi Kuroda, and Hirotsugu Ogi, "Mass-fabrication scheme of highly sensitive wireless electrodeless MEMS QCM biosensor with antennas on inner walls of microchannel", Anal. Chem. 95, 13, 5507-5513 (2023).

10. Keiichi Yamaguchi, Kichitaro Nakajima, and Yuji Goto, "Mechanisms of polyphosphate-induced amyloid fibril formation triggered by breakdown of supersaturation", Biophysics and Physicobiology, e200013 (2023).

11. Wenlou Yuan, Akira Nagakubo, Oliver Wright, and Hirotsugu OGI, "High Sensitivity Biosensing Scheme based on a GHz Phononic Crystal Waveguide", Jpn. J. Appl. Phys., 62 SJ1012 (2023).

#2022

  1. Fumihito Kato, Hiroki Ato, Shoichi Ichikawa, Masahito Kimura, Taiki Hasegawa, Ryunosuke Ryuzaki, Noriyasu Masumoto, Manabu Suzuki, and Hirotsugu Ogi, "Improvement of hydrogen detection sensitivity of palladium film by in-plane compressive plastic deformation and application to hydrogen gas sensor", Jpn. J. Appl. Phys., 61 126501 (2022).
  2. Kichitaro Nakajima, Keiichi Yamaguchi, Masahiro Noji, César Aguirre, Kensuke Ikenaka, Hideki Mochizuki, Lianjie Zhou, Hirotsugu Ogi, Toru Ito, Ichiei Narita, Fumitake Gejyo, Hironobu Naiki, Suguru Yamamoto & Yuji Goto, "Macromolecular crowding and supersaturation protect hemodialysis patients from the onset of dialysis-related amyloidosis", Nat. Commun., 13, 5689 (2022).
  3. Yasuhiro Oishi, Hirotsugu Ogi, Satoshi Hagiwara,Minoru Otani, and Koichi Kusakabe, "Theoretical analysis on the stability of 1-pyrenebutanoic acid, succinimidyl ester adsorbed on graphene ", ACS Omega 7, 31120-31125 (2022).
  4. Hiroki Fukuda, Akira Nagakubo, Shigeyoshi Usami, Masashi Ikeda, Masayuki Imanishi, Masashi Yoshimura, Yusuke Mori, Kanta Adachi, and Hirotsugu Ogi, "Determination of the electron trap level in Fe-doped GaN by phonon-assisted conduction phenomenon", Appl. Phys. Express 15, 071003 (2022). (Accepted version is available.)
  5. A. Nagakubo, K. Kanai, H. Tamura, A. Tange, and H. Ogi, "Variable repetition frequency asynchronous optical sampling method without a feedback loop", AIP Advances 12, 045323 (2022).
  6. Hsu Kai Weng, Akira Nagakubo, Hideyuki Watanabe, and Hirotsugu Ogi, "Suppression of Brillouin oscillation in transparent free-standing diamond thin films in picosecond ultrasound", Appl. Phys. Lett. 120, 112203 (2022). (Accepted version is available.)
  7. Nobutomo Nakamura, Koji Matsuura, Akio Ishii, and Hirotsugu Ogi, "Restructuring in bimetallic core–shell nanoparticles: Real time observation", Phys. Rev. B. 105, 125401 (2022).(Accepted version is available.)
  8. Kakeru Tojo, Akira Nagakubo, and Hirotsugu Ogi, "The angular dependence of magnetization dynamics induced by a GHz range strain pulse", Jp. J. Appl. Phys. 61 SG1007 (2022).(Accepted version is available.)
  9. Yuji Goto, Kichitaro Nakajima, Keiichi Yamaguchi, Masatomo So, Kensuke Ikenaka, Hideki Mochizuki, and Hirotsugu Ogi, "Development of HANABI, an ultrasonication-forced amyloid fibril inducer", Neurochemistry International 153, 105270 (2022).

10. 　Hsu Kai Weng, Akira Nagakubo, Hideyuki Watanabe, and Hirotsugu Ogi, "Lattice thermal conductivity in isotope diamond asymmetric superlattices", Jpn. J. Appl. Phys. 61 SG1004 (2022).(Accepted version is available.)

11.　Wenlou Yuan, Akira Nagakubo, and Hirotsugu Ogi, "Effect of interfacial damping on high-frequency surface wave resonance on a nanostrip-bonded substrate", J. Appl. Phys. 131, 015103 (2022).(Accepted version is available.)

12. 　Kentaro Noi, Kichitaro Nakajima, Keiichi Yamaguchi, Masatomo So, Kensuke Ikenaka, Hideki Mochizuki, Yuji Goto, and Hirotsugu Ogi, "Acceleration of amyloid fibril formation by multichannel sonochemical reactor", Jpn. J. Appl. Phys. 61 SG1002 (2022). (Accepted version is available.)

#2021

  1. Kichitaro Nakajima, Hajime Toda, Keiichi Yamaguchi, Masatomo So, Kensuke Ikenaka, Hideki Mochizuki, Yuji Goto, and Hirotsugu Ogi, "Half-time heat map reveals ultrasonic effects on morphology and kinetics of amyloidogenic aggregation reaction", ACS Chem. Neurosci. 12, 3456-3466 (2021).
  2. Hsu-Kai Weng, Akira Nagakubo, Hideyuki Watanabe, and Hirotsugu Ogi, "Phonon propagation in isotopic diamond superlattices", Phys. Rev. B 104, 054112 (2021).
  3. Kentaro Noi, Kensuke Ikenaka, Hideki Mochizuki, Yuji Goto, and Hirotsugu Ogi, "Disaggregation behavior of amyloid β fibrils by anthocyanins studied by total-internal-reflection-fluorescence microscopy coupled with wireless quartz-crystal microbalance biosensor", Anal. Chem. 93, 11176-11183 (2021). (This paper is is available here.)
  4. N. Nakamura, K. Kashiuchi, and H. Ogi, "Multi-mode resistive spectroscopy for precisely controlling morphology of extremely narrow gap palladium nanocluster array", Rev. Sci. Instrum. 92, 063901 (2021).
  5. Nobutomo Nakamura, Yuto Sakamoto, and Hirotsugu Ogi, "Spontaneous nucleation on flat surface by depletion force in colloidal suspension", Sci. Rep. 11, 8929 (2021).
  6. Hiroki Fukuda, Akira Nagakubo, and Hirotsugu Ogi, "Elastic constant of dielectric nano-thin films using three-layer resonance studied by picosecond ultrasonics", Jpn. J. Appl. Phys. 60, SDDA05(2021).(Accepted version is available.)
  7. Kichitaro Nakajima, Kentaro Noi, Keiichi Yamaguchi, Masatomo So, Kensuke Ikenaka, Hideki Mochizuki, Hirotsugu Ogi, and Yuji Goto, "Optimized sonoreactor for accelerative amyloid-fibril assays through enhancement of primary nucleation and fragmentation", Ultrasonics Sonochemistry 73, 105508 (2021). (Accepted version is available.)
  8. Lianjie Zhou, Fumihito Kato, and Hirotsugu OGI, "Sensitive label-free immunoglobulin G detection using a MEMS quartz crystal microbalance biosensor with a 125 MHz wireless quartz resonator", Jpn. J. Appl. Phys. 60, SDDB03 (2021).(Accepted version is available.)
  9. Lianjie Zhou, Fumihito Kato, Nobutomo Nakamura, Yasushi Oshikane, Akira Nagakubo, and Hirotsugu Ogi, "MEMS hydrogen gas sensor with wireless quartz crystal resonator", Sens. Actuat. B. 334, 129651 (2021).(Accepted version is available.)

10. Fumihito Kato, Yu Sato, Hiroki Ato, Haruki Kuwabara, Yuto Kobayashi, Kensuke Nakamura, Noriyasu Masumoto, Hiroyuki Noguchi, and Hirotsugu Ogi, "Study on micropillar arrangement optimization of wireless-electrodeless quartz crystal microbalance sensor and application to gas sensor", Jpn. J. Appl. Phys. 60, SDDC01 (2021).

#2020

  1. K. Nakajima, T. Yamazaki, Y. Kimura, M. So, Y. Goto, and H. Ogi, "Time-Resolved Observation of Evolution of Amyloid-β Oligomer with Temporary Salt Crystals", J. Phys. Chem. Lett. 11, 6176-6184 (2020).(Accepted version is available.)
  2. K. Kusakabe, A. Wake, A. Nagakubo, K. Murashima, M. Murakami, K. Adachi, and H. Ogi, "Interplanar stiffness in defect-free monocrystalline graphite", Phys. Rev. Mater. 4, 043603 (2020).（新聞記事）
  3. H. K. Weng, N. Nagakubo, H. Watanabe, and H. Ogi, "Thermal conduction in isotope diamond thin films studied by pump-probe laser reflectivity measurement", Jpn. J. Appl. Phys. 59, SKKA04 (2020).
  4. N. Nakamura, A. Maehara, and and H. Ogi, "Development of confocal picosecond ultrasonics for visualizing propagation of acoustic wave", Jpn. J. Appl. Phys. 59, SKKB04 (2020).(Accepted version is available.)
  5. L. Zhou, N. Nakamura, A. Nagakubo, and and H. Ogi, "Enhancement of sensitivity of Pd-based hydrogen-gas sensor by plasma exposure studied by wireless quartz resonator", Jpn. J. Appl. Phys. 59 SKKB02 (2020).(Accepted version is available.)
  6. K. Noi, M. Iijima, S. Kuroda, F. Kato, and H. Ogi, "Mechanism of affinity enhanced protein adsorption on bio-nanocapsules studied by viscoelasticity measurement with wireless QCM biosensor", Jpn. J. Appl. Phys. 59, SKKB03 (2020).(Accepted version is available.)
  7. A. Nagakubo, H. T. Lee, H. Ogi, T. Moriyama, and T. Ono, "Elastic constants of beta tungsten thin films studied by picosecond ultrasonics and density functional theory", Appl. Phys. Lett. 116, 021901 (2020).
  8. A. Nagakubo, K. Adachi, T. Nishihara, and H. Ogi, "GHz-range resonant ultrasound spectroscopy for a free-standing nano film studied by picosecond ultrasonics", Appl. Phys. Express 13, 016504 (2020).(Accepted version is available.)

#2019

  1. N. Nakamura, T. Ueno, and H. Ogi, "Hydrogen-gas sensing at low concentrations using extremely narrow gap palladium nanoclusters prepared by resistive spectroscopy", J. Appl. Phys. 126, 225104 (2019).
  2. L. Zhou, N. Nakamura, A. Nagakubo, and H. Ogi, "Highly sensitive hydrogen detection using curvature change of wireless-electrodeless quartz resonators", Appl. Phys. Lett. 115, 171901 (2019).
  3. N. Nakamura, S. Nakashima, and H. Ogi, "Mechanical oscillation accelerating nucleation and nuclei growth in hard-sphere colloidal glass", Sci. Rep. 9, 12836 (2019).
  4. K. Noi, A. Iwata, F. Kato, and H. Ogi, "Ultrahigh-Frequency Wireless MEMS QCM Biosensor for Direct Label-Free Detection of Biomarkers in a Large Amount of Contaminants", Anal. Chem. 91(15), 9398-9402 (2019).(Accepted version is available.)
  5. A. Nagakubo, S. Tsuboi, Y. Kabe, S. Matsuda, A. Koreeda, Y. Fujii, and H. Ogi, "Zero temperature coefficient of sound velocity in vitreous silicon oxynitride thin films", Appl. Phys. Lett. 114, 251905 (2019).
  6. N. Nakamura, R. Yokomura, N. Takeuchi, D. Yamakado, and H. Ogi, "Elastic stiffness of metallic multilayers studied by picosecond ultrasonics: improved interpretation of interface elasticity", Jpn. J. Appl. Phys. 58, 075504, 2019 (2019).(Accepted version is available.)
  7. K. Noi, M. Iijima, S. Kuroda, and H. Ogi,, "Ultrahigh-Sensitive Wireless QCM with Bio-nanocapsules", Sens. Actuat. B: Chemical 293, 59-62 (2019).(Accepted version is available.)
  8. N. Nakamura, T. Ueno, and H. Ogi, "Precise control of hydrogen response of semicontinuous palladium film using piezoelectric resonance method", Appl. Phys. Lett. 114, 201901 (2019).<-- selected as a Featured Article!
  9. K. Kakuda, K. Ikenaka, K. Araki, M. So, C. Aguirre, Y. Kajiyama, K. Konaka, K. Noi, K. Baba, H. Tsuda, S. Nagano, T. Ohmichi, Y. Nagai, T. Tokuda, O. M.A. El-Agnaf, H. Ogi, Y. Goto, and H. Mochizuki, "Ultrasonication-based rapid amplification of α-synuclein aggregates in cerebrospinal fluid", Sci. Rep. 9, 6001 (2019). （新聞記事１, 新聞記事２）

10. H. Ogi, S. Iwagami, A. Nagakubo, T. Taniguchi, and T. Ono, "Nano-Plate Biosensor Array Using Ultrafast Heat Transport through Proteins", Sens. Actuat. B: Chemical 278, 15-20 (2019).(Accepted version is available.)

11. M. Okumura, K. Noi, S. Kanemura, M. Kinoshita, T. Saio, Y. Inoue, T. Hikima, S. Akiyama, T. Ogura, and K. Inaba, "Dynamic assembly of protein disulfide isomerase in catalysis of oxidative folding", Nat. Chem. Biol. 15, 499-509 (2019).

#2018

  1. K. Adachi, H. Ogi, N. Takeuchi, N. Nakamura, H. Watanabe, T. Ito, and Y. Ozaki, "Unusual elasticity of monoclinic β-Ga2O3", J. Appl. Phys. 124, 085102 (2018). <-- selected as a Featured Article!
  2. H. Ishida and H. Ogi, "Perturbation theories behind thermal mode spectroscopy for high-accuracy measurement of thermal diffusivity of solids", Phil. Mag. 98(23), 2164-2187 (2018).
  3. Y.-T. Lai, H. Ogi, K. Noi, and F. Kato, "Viscoelasticity response during fibrillation of amyloid β peptides on quartz crystal microbalance biosensor", Langmuir 34, 5474-5479 (2018).(Accepted version is available.)
  4. F. Kato, H. Noguchi, Y. Kodaka, N. Oshida, and H. Ogi, "Wireless poly(dimethylsiloxane) quartz-crystal-microbalance biosensor chip fabricated by nanoimprint lithography for micropump integration aiming at application in lab-on-a-chip", Jpn. J. Appl. Phys. 57, 07LD14 (2018).
  5. S. Tsuboi, K. Adachi, A. Nagakubo, and H. Ogi, "Theoretical study on elastic properties of Si2N2O by ab-initio calculation", Jpn. J. Appl. Phys., 57, 07LB04 (2018).(Accepted version is available.)


#2017

  1. A. Nitani, H. Muta, M. Adachi, M. So, K. Sasahara, K. Sakurai, E. Chatani, K. Naoe, H. Ogi, D. Hall, and Y. Goto, "Heparin-dependent aggregation of hen egg white lysozyme reveals two distinct mechanisms of amyloid fibrillation", J. Biol. Chem. 292, 21219-21230 (2017).
  2. E. Oishi, Y. Fujii, D. Katayama, A. Koreeda, A. Nagakubo, and H. Ogi "Phonon anharmonicity in zirconium tungstate single crystal investigated by broadband light scattering", Jpn. J. Appl. Phys. 56, 10PB06 (2017)
  3. N. Nakamura and H. Ogi "Resistive spectroscopy coupled with non-contacting oscillator for detecting discontinuous-continuous transition of metallic films", Appl. Phys. Lett. 111, 101902 (2017).
  4. M. Yamato, T. Matsuzaki, R. Araki, S. Tsuchida, K. Okuda, H. Ying, S. Sanada, H. Asanuma, Y. Asano, M. Asakura, S. Takashima, M. Kitakaze, K. Noi, H. Torii, H. Ogi, R. Iwamoto, E. Mekada, Y. Sakata, and T. Minamino, "RNA aptamer binds heparin-binding epidermal growth factor-like growth factor with high affinity and specificity and neutralizes its activity", Int. J. Gerontology 11, 191-196 (2017).
  5. K. Nakajima, M. So, K. Takahashi,Y. Tagawa, M. H, Y. Goto, and H. Ogi "Optimized Ultrasonic Irradiation Finds Out Ultra-stable Aβ1－40 Oligomer", J. Phys. Chem. B 121(12), pp. 2603-2613 (2017).(Accepted version is available.)
  6. K. Nakajima, D. Nishioka, M. Hirao, M. So, Y. Goto, and H. Ogi "Drastic acceleration of fibrillation of insulin by transient cavitation bubble", Ultrason. Sonochem. 36, 206-211 (2017).(Accepted version is available.)
  7. Nurmalia, N. Nakamura, H. Ogi, and M. Hirao, "EMAT pipe inspection technique using higher mode torsional guided wave T(0,2)", NDT & E. Int. 87, 78-84 (2017).(Accepted version is available.)

#2016

  1. K. Adachi, H. Ogi, A. Nagakubo, N. Nakamura, M. Hirao, M. Imade, M. Yoshimura, and Y. Mori "Piezoelectric coefficients of GaN determined by hopping conduction of carriers", Appl. Phys. Lett. 109, 182108 (2016).
  2. H. Ogi, T. Ishihara, H. Ishida, A. Nagakubo, N. Nakamura, and M. Hirao, "Thermal mode spectroscopy for thermal diffuusivity of millimeter-size solids", Phys. Rev. Lett. 117, 195901, (2016).
  3. C.M. Sayers, M. Hirao, and T. Morishita, "Grain boundary compliance and ultrasonic velocities in pure copper undergoing intergranular creep", Int. J. Solids. Struct. 96, 400-408, (2016).
  4. K. Adachi, H. Ogi, A. Nagakubo, N. Nakamura, M. Hirao, M. Imade, M. Yoshimura, and Y. Mori, "Elastic constants of GaN between 10 and 305 K", J. Appl. Phys. 119, 245111 (2016).
  5. N. Nakamura, K. Ashida, T. Takishita, H. Ogi, and M. Hirao, "Inspection of stress corrosion cracking in welded stainless steel pipe using point-focusing electromagnetic-acoustic transducer", NDT & E Int. 83, 88-93 (2016).(Accepted version is available.)
  6. K. Jensen and N. Nakamura, "Note: An iterative algorithm to improve colloidal particle locating", Rev. Sci. Instrum. 87, 066103 (2016)
  7. A. Nagakubo, M. Arita, H. Ogi, H. Sumiya, N. Nakamura, and M. Hirao, "Elastic constant C11 of 12C diamond between 10 and 613 K", Appl. Phys. Lett. 108, 221902 (2016).
  8. K. Nakajima, H. Ogi, K. Adachi, K. Noi, M. Hirao, H. Yagi, and Y. Goto: "Nucleus factory on cavitation bubble for amyloid β fibril", Sci. Rep. 6, 22015 (2016).
  9. H. Ogi, S. Masuda, A. Nagakubo, N. Nakamura, M. Hirao, K. Kondou, and T. Ono: "Impact of interface stiffness in surface-wave resonances on nano-strip-attached substrates", Phys. Rev. B 93, 024112 (2016).


#2015

  1. N. Nakamura, N. Yoshimura, H. Ogi, and M. Hirao, "Formation of continuous metallic film on quartz studied by noncontact resonant ultrasound spectroscopy", J. Appl. Phys. 118, 085302 (2015).
  2. A. Nagakubo, H. Ogi, H. Ishida, M. Hirao, T. Yokoyama, and T. Nishihara, "Temperature behavior of sound velocity of fluorine-doped vitreous silica thin films studied by picosecond ultrasonics", J. Appl. Phys. 118, 014307 (2015).
  3. T. Shagawa, H. Torii, F. Kato, H. Ogi, and M. Hirao, "Viscoelasticity evolution in protein layers during binding reactions evaluated by a high-frequency wireless and electrodeless QCM biosensor without dissipation", Jpn. J. Appl. Phys. 54, 096601 (2015).(Accepted version is available.)
  4. N. Nakamura, H. Ogi, and M. Hirao, "Review on acoustic transducers for resonant ultrasound spectroscopy", JOM 67, 1849-1855 (2015).
  5. T. Shagawa, H. Torii, F. Kato, H. Ogi, and M. Hirao, "Relationship between viscosity change and specificity in protein binding reaction studied by high frequency wireless-electrodeless MEMS biosensor", Jpn. J. Appl. Phys. 54, 068001 (2015).(Accepted version is available.)
  6. H. Johjima, K. Noi, S. Nishikori, H. Ogi, M. Esaki, and T. Ogura "Microtubule severing by katanin p60 AAA+ ATPase requires the C-terminal acidic tails of both α- and β-tubulins and basic amino acid residues in the AAA+ ring pore", J. Biol. Chem. 290(18), 11762 (2015).
  7. H. Ogi, Y. Tsutsui, N. Nakamura, A. Nagakubo, M. Hirao, M. Imade, M. Yoshimura, and Y. Mori, "Hopping conduction and piezoelectricity in Fe-doped GaN studied by non-contacting resonant ultrasound spectroscopy", Appl. Phys. Lett. 106, 091901 (2015).
  8. T. Takishita, K. Ashida, N. Nakamura, H. Ogi, and M. Hirao, "Development of shear-vertical wave point-focusing electromagnetic acoustic transducer (PF-EMAT)", Jpn. J. Appl. Phys. 54, 07HC04 (2015).(Accepted version is available.)
  9. A. Nagakubo, M. Arita, T. Yokoyama, S. Matsuda, M. Ueda, H. Ogi, and M. Hirao "Acoustic properties of co-doped AlN thin films at low temperatures studied by picosecond ultrasonics", Jpn. J. Appl. Phys. 54, 07HD01 (2015).(Accepted version is available.)
  10. H. Hamada, H. Ogi, K. Noi, H. Yagi, Y. Goto, and M. Hirao "Nucleation-fibrillation dynamics of Aβ1－40 peptides on liquid-solid surface studied by total-internal-reflection fluorescence microscopy coupled with quartz-crystal microbalance biosensor", Jpn. J. Appl. Phys. 54, 07HE01 (2015).(Accepted version is available.)


#2014

  1. A. Nagakubo, H. Ogi, H. Sumiya, and M. Hirao "Elasticity and hardness of nano-polycrystalline boron nitrides: The apparent Hall-Petch effect", Appl. Phys. Lett. 105, 081906 (2014).
  2. H. Ogi, M. Fukukshima, H. Hamada, K. Noi, M. Hirao, H. Yagi, and Y. Goto "Ultrafast propagation of β-amyloid fibrils in oligomeric cloud", Sci. Rep. 4, 6960 (2014).
  3. A. Maehara, N. Nakamura, H. Ogi, and M. Hirao "Elimination of Bandwidth Effect in Attenuation Measurement with Picosecond Ultrasonics", Jpn. J. Appl. Phys. 53 086602 (2014).(Accepted version is available.)
  4. H. Ogi, Y. Sakamoto, and M. Hirao "Calibration-free portable Young's-modulus tester with isolated langasite oscillator", Ultrasonics 54, 1963-1966 (2014).(Accepted version is available.)
  5. K. Uehara, H. Ogi, and M. Hirao "Enhancement of Ultrahigh-Frequency Vibration of Au/Si3N4 Composite Resonator with Picosecond Ultrasound", Appl. Phys. Express 7, 025201 (2014).(Accepted version is available.)


#2013

  1. H. Ogi, "Wireless-electrodeless quartz-crystal-microbalance biosensors for studying interactions among biomolecules: A review", Proc. Jpn. Acad. Ser. B, 89, 401 (2013).
  2. R. Tarumi, H. Ledbetter, H. Ogi and M. Hirao, "Low-temperature elastic constants of monocrystal corundum (alpha-Al2O3)", Phil. Mag., 93, 4532 (2013).
  3. N. Nakamura, N. Yoshimura, H. Og, and M. Hirao, "Elastic constants of polycrystalline L10 FePt at high temperatures", J. Appl. Phys. 114, 093506 (2013).
  4. M. Tane, Y. Okuda, Y. Todaka, H. Ogi, and A. Nagakubo, "Elastic properties of a single-crystalline ω phase in titanium", Acta Mater., (2013) in press.
  5. K. Tanigaki, H. Ogi, H. Sumiya, K. Kusakabe, N. Nakamura, M. Hirao, and H. Ledbetter, "Observation of higher stiffness in nanopolycrystal diamond than monocrystal diamond", Nat. Commun., 4, 2343 (2013).
  6. A. Nagakubo, H. Ogi, H. Sumiya, K. Kusakabe, and M. Hirao, "Elastic constants of cubic and wurtzite boron nitrides", Appl. Phys. Lett., 102, 241909 (2013).
  7. Nurmalia, N. Nakamura, H. Ogi, and M. Hirao, "Mode Conversion and Total Reflection of Torsional Waves for Pipe Inspection", Jpn. J. Appl. Phys., 52, 07HC14 (2013).
  8. F. Kato, K. Tsurimoto, H. Ogi, and M. Hirao, "Application of Sandwich Assay to RAMNE-Q Biosensor for High-selective Detection of C-reactive Protein", Jpn. J. Appl. Phys., 07HD11 (2013).
  9. N. Nakamura, Y. Nakamichi, H. Ogi, M. Hirao, and M. Nishiyama, "Elastic stiffness of Co thin film at high temperatures monitored by picosecond ultrasound", Jpn. J. Appl. Phys., 52, 07HB05 (2013).
  10. K. Uesugi, H. Ogi, M. Fukushima, M. So, H. Yagi, Y. Goto, and M. Hirao, "Mechanisms of Ultrasonically Induced Fibrillation of Amyloid β1－40 Peptides", Jpn. J. Appl. Phys. 52, 07HE10 (2013).(Accepted version is available.)
  11. H. Ogi, M. Fukushima, K. Uesugi, H. Yagi, Y. Goto, and M. Hirao, "Acceleration of deposition of Aβ1-40 peptide on ultrasonically formed Aβ1-42 nucleus studied by wireless quartz-crystal-microbalance biosensor", Biosens. Bioelectron. 40, 200-205 (2013).(Accepted version is available.)


#2012

  1. Y. Yoshimura, Y. Lin, H. Yagi, Y.-H. Lee, H. Kitayama, K. Sakurai, M. So, H. Ogi, H. Naiki, and Y. Goto, "Distinguishing crystal-like amyloid fibrils and glass-like amorphous aggregates from their kinetics of formation", Proc. Nat. Acad. Sci. USA 109, 14446-14451 (2012).
  2. R. Ribichini, P.B. Nagy, and H. Ogi, "The impact of magnetostriction on the transduction of normal bias field EMATs", NDT& E Int. 51, 8-15 (2012).
  3. N. Nakamura, M. Sakamoto, H. Ogi, and M. Hirao, "Elastic constants of langasite and alpha quartz at high temperatures measured by antenna transmission acoustic resonance", Rev. Sci. Instrum. 83, 073901 (2012).
  4. A. Nagakubo, A. Yamamoto, K. Tanigaki, H. Ogi, N. Nakamura, and M. Hirao, "Monitoring of the Low-Temperature Phase Transitions of SrTiO3 Using Picosecond Ultrasound Spectroscopy", Jpn. J. Appl. Phys. 51, 7S, 07GA09 (2012).(Accepted version is available.)
  5. H. Ogi, T. Kawamoto, Y. Nakamichi, and M. Hirao, "Picosecond Ultrasound Spectroscopy with a Stable Fiber Laser for Ultrahigh-Frequency-Oscillator Applications: from Nanomechanics to Biosensors", Jpn. J. Appl. Phys. 51 07GA08 (2012).(Accepted version is available.)
  6. F. Kato, H. Ogi, T. Yanagida, S. Nishikawa, M. Hirao, and M. Nishiyama, "Resonance Acoustic Microbalance with Naked-Embedded Quartz (RAMNE-Q) Biosensor Fabricated by Microelectromechanical-System Process", Biosen. Bioelectron. 33, 139-145 (2012).(Accepted version is available.)
  7. N. Nakamura, H. Ogi, and M. Hirao, "Elastic, anelastic and piezoelectric coefficients of GaN", J. Appl. Phys. 111, 013509 (2012).(Top 20 Most Read Articles on January 2012)
  8. Nurmalia, N. Nakamura, H. Ogi, M. Hirao, and K. Nakahata, "Mode conversion behavior of SH guided wave in a tapered plate", NDT& E Int. 45, 156-161 (2012).


#2011

  1. M. So, H. Yagi, K. Sakura, H. Ogi, H. Naiki, and Y. Goto "Ultrasonication-Dependent Acceleration of the Formation of Amyloid Fibrils", J. Mol. Biol. 412, 568-577 (2011).
  2. R. Tarumi, H. Nitta, H. Ogi, and M. Hirao "Low-temperature elastic constants and piezoelectric coefficients of langasite (La3Ga5SiO14)", Phil. Mag. 91, 2140-2153 (2011).
  3. H. Ogi, T. Yanagida, M. Hirao, and M. Nishiyama "Replacement-Free Mass-Amplified Sandwich Assay with 180-MHz Electrodeless Quartz-Crystal Microbalance Biosensor", Biosen. Bioelectron. 26, 4819-4822 (2011).(Accepted version is available.)
  4. H. Ogi, Y. Fukunishi, T. Yanagida, H. Yagi, Y. Goto, M. Fukushima, K. Uesugi, and M. Hirao, "Seed-dependent deposition behavior of A-beta peptides studied with wireless quartz-crystal-microbalance biosensor", Anal. Chem. 83, 4982-4988 (2011).(Accepted version is available.)
  5. M. Tane, S. Nakano, R. Nakamura, H. Ogi, M. Ishimaru, H. Kimizuka, and H. Nakajima, "Nanovoid Formation by Change in Amorphous Structure through the Annealing of Amorphous Al2O3 Thin Films", Acta Mater. in press (2011).
  6. F. Kato, H. Ogi, T. Yanagida, S. Nishikawa, M. Nishiyama, and M. Hirao, "High-Frequency Electrodeless Quartz Crystal Microbalance (QCM) Chip with a Bare Quartz Resonator Encapsulated in a Silicon Microchannel",Jpn. J. Appl. Phys. 50, 07HD03 (2011).
  7. Nurmalia, N. Nakamura, H. Ogi, and M. Hirao, "Detection of SH Guided Waves Propagating in Aluminum Plate with Thinning Region",Jpn. J. Appl. Phys. 50, 07HC17 (2011).
  8. H. Ogi, N. Nakamura, and M. Hirao, "Picosecond Ultrasound Spectroscopy for Studying Elastic Modulus of Thin Films: A Review",Nondestr. Test. Eval. in press (2011), invited.
  9. N. Nakamura, A. Uranishi, M. Wakita, H. Ogi, M. Hirao, and M. Nishiyama "Elastic stiffness of L10 FePt thin film studied by picosecond ultrasonics",Appl. Phys. Lett. 98, 101911 (2011).


#2010

  1. H. Ogi, A. Yamamoto, K. Kondou, K. Nakano, K. Morita, N. Nakamura, T. Ono, and M. Hirao "Significant softening of copper nanowires during electromigration studied by picosecond ultrasound spectroscopy",Phys. Rev. B 82, 155436 (2010).
  2. H. Ogi, T. Kawamoto, N. Nakamura, M. Hirao, and M. Nishiyama "Ultrathin Film Oscillator Biosensors Excited by Ultrafast Light Pulses",Biosen. Bioelectron. 26, 1273-1277 (2010).
  3. R. Tarumi, H. Ledbetter, S. Shiomi, H. Ogi, M. Hirao, A. P. Tsai, "Elastic constants and anisotropic internal frictions of decagonal Al72Ni18Co8 single quasicrystal at low temperatures", J. Appl. Phys. 108, 013514 (2010).
  4. N. Nakamura, Y. Kake, H. Ogi, and M. Hirao "Strong strain-dependent elastic stiffness in ultrathin Pt films on MgO", J. Appl. Phys. 108, 043525 (2010).
  5. N. Nakamura, T. Nakashima, H. Ogi, M. Hirao, and M. Nishiyama "Fast recovery of elastic constant in thin films studied by resonant-ultrasound spectroscopy", J. Appl. Phys. 107, 103541 (2010).
  6. H. Ogi, H. Nagai,Y. Fukunishi, T. Yanagida, M. Hirao, and M. Nishiyama "Multichannel Wireless-Electrodeless Quartz-Crystal Microbalance Immunosensor", Anal. Chem. 82, 3957-3962 (2010).(Accepted version is available.)
  7. K. Tanigaki, T. Kusumoto, H. Ogi, N. Nakamura, M. Hirao, "Measurement of Elastic Constant and Refraction Index of Thin Films at Low Temperatures Using Picosecond Ultrasound", Jpn. J. Appl. Phys. 49, 07HB01 (2010).(Accepted version is available.)
  8. N. Nakamura, A. Uranishi, M. Wakita, H. Ogi, and M. Hirao, "Annealing effect on acoustic property of Fe/Pt superlattice studied by picosecond ultrasound", Jpn. J. Appl. Phys. 49, 07HB04 (2010).
  9. H. Ogi, H. Nagai,Y. Fukunishi, T. Yanagida, M. Hirao, and M. Nishiyama "Development of 170 MHz Electrodeless Quartz-Crystal Microbalance Immunosensor with Nonspecifically Immobilized Receptor Proteins", Jpn. J. Appl. Phys. 49, 07HD07(2010).(Accepted version is available.)
  10. N. Nakamura, T. Nakashima, S. Oura, H. Ogi, and M. Hirao "Resonant-Ultrasound Spectroscopy for Studying Annealing Effect on Elastic Constant of Thin Film", Ultrasonics 50, 150-154 (2010).


#2009

  1. H. Ogi, K. Matsumoto, Y. Fujita, T. Kawamoto, N. Nakamura, and M. Hirao "Label-free ultrathin Pt film biosensor using phonon vibrations excited by ultrafast light pulses", Appl. Phys. Express 3, 017001 (2009).(Accepted version is available.)
  2. R. Tarumi, K. Shiraishi, and M. Hirao "High Temperature Elastic Constants of α-Fe Single Crystal Studied by Electromagnetic Acoustic Resonance", ISIJ Int. 49, 1432-1435 (2009).
  3. H. Ogi, T. Shagawa, N. Nakamura, and M. Hirao "Extraction of Interface Stiffness in Superlattices: Proposal of the Interface Elasticity Parameter", Appl. Phys. Express 2, 105001 (2009).(Accepted version is available.)
  4. H. Ogi, H. Nagai,Y. Fukunishi, M. Hirao, and M. Nishiyama "170-MHz Electrodeless Quartz Crystal Microbalance Biosensor: Capability and Limitation of Higher Frequency Measurement", Anal. Chem. 81, 8068-8073 (2009).(Accepted version is available.)
  5. H. Ohtani, H. Ogi and M. Hirao, "Noncontact Evaluation of Surface-Wave Nonlinearity for Creep Damage in Cr-Mo-V Steel", Jpn. J. Appl. Phys. 48 (2009) 07GD02.
  6. H. Tanei, K. Kusakabe, H. Ogi, N. Nakamura, and M. Hirao, "Observation of gamma-point phonon frequency in ultrathin metallic films confirmed by ab initio calculation and lattice dynamics", Appl. Phys. Lett. 95, 011902 (2009).
  7. H. Ogi, K. Okamoto, H. Nagai,Y. Fukunishi, and M. Hirao, "Replacement-Free Electrodeless Quartz Crystal Microbalance Biosensor Using Nonspecific-Adsorption of Streptavidin on Quartz", Anal. Chem. 81, 4015-4020 (2009).(Accepted version is available.)
  8. H. Ogi, Y. Fukunishi, H.Nagai, K. Okamoto, M. Hirao, and M. Nishiyama "Nonspecific-Adsorption Behavior of Polyethylenglycol and Bovine Serum Albumin Studied by 55-MHz Wireless-Electrodeless Quartz Crystal Microbalance", Biosens. Bioelectron. 24, 3148–3152 (2009).(Accepted version is available.)
  9. N. Nakamura, T. Nakashima, H. Ogi, M. Hirao, and M. Nishiyama, "Fast Recovery of Elastic Stiffness in Ag Thin Film Studied by Resonant-Ultrasound Spectroscopy", Jpn. J. Appl. Phys. 48 (2009) 07GA02.
  10. H. Ogi, T. Shagawa, N. Nakamura, M. Hirao, H. Odaka, and N. Kihara "Elastic-Constant Measurement in Oxide and Semiconductor Thin Films by Brillouin Oscillations Excited by Picosecond Ultrasound", Jpn. J. Appl. Phys. 48 (2009) 07GA01.(Accepted version is available.)
  11. H. Ogi, K. Hatanaka, Y. Fukunishi, H. Nagai, M. Hirao, and M. Nishiyama "Aggregation Behavior of Amyloid beta 1-42 Peptide Studied by 55-MHz Wireless-Electrodeless Quartz-Crystal Microbalance", Jpn. J. Appl. Phys. 48 (2009) 07GF01.(Accepted version is available.)
  12. H. Tanei, K. Tanigaki, K. Kusakabe, H. Ogi, N. Nakamura, and M. Hirao, "Stacking-Fault Structure Explains Unusual Elasticity of Nanocrystalline Diamonds", Appl. Phys. Lett. 94, 041914 (2009).(Selected for Virtual Journal of Nanoscale Science & Technology.)


#2008

  1. N. Nakamura, A. Uranishi, T. Shagawa, H. Ogi, M. Hirao, and M. Nishiyama, "Laser-Induced Coherent Acoustic Phonons for Measuring Elastic Constants of Ultra-Thin Films", Journal of Solid Mechanics and Materials Engineering 2, 1420-1426 (2008).
  2. H. Ogi, T. Shagawa, N. Nakamura, M. Hirao, H. Odaka, N. Kihara, "Elastic constant and Brillouin oscillations in sputtered vitreous SiO2 thin films", Phys. Rev. B 78, 134204 (2008).(Selected for Virtual Journal of Ultrafast Science)
  3. N. Nakamura, H. Ogi, and M. Hirao, "Stable Elasticity of Epitaxial Cu Thin Films on Si", Phys. Rev. B 77, 245416 (2008).
  4. H. Ogi, Y. Fukunishi, T. Omori, K. Hatanaka, M. Hirao, and M. Nishiyama, "Effects of Flow Rate on Sensitivity and Affinity in Flow-Injection Biosensor Systems Studied by 55-MHz Wireless QCM", Anal. Chem. 80, 5494-5500 (2008).(Accepted version is available.)
  5. R. Tarumi, Y. Kawasaki, H. Ogi, M. Hirao, and T. Kagayama, "Pressure-Dependent Shear Modulus of Polycrystalline Al Studied by Electromagnetic Acoustic Resonance", Jpn. J. Appl. Phys. 47, 1763-1766 ( 2008).
  6. H. Ogi, T. Inoue, H. Nagai, and M. Hirao, "Quantitative imaging of Young's modulus of solids: A contact-mechanics study", Rev. Sci. Instrum. 79, 053701 (2008).
  7. N. Nakamura, H. Ogi, T. Shagawa, and M. Hirao, "Recovery of Elastic Constant of Ultrathin Cu Films by Low Temperature Annealing", Appl. Phys. Lett. 92, 141901 (2008).
  8. J. Tian, H. Ogi, T. Tada, and M. Hirao, "A Freestanding Oscillator for Resonant-Ultrasound Microscopy", IEEE Trans. Ultrason. Ferroelect. Freq. Contr. 55, pp. 499-502 (2008).
  9. H. Tanei, N. Nakamura, Y. Kake, H. Ogi, K. Kusakabe, and M. Hirao, "Elastic constants of Co/Pt superlattice studied by acoustic measurements and ab initio calculations", Jpn. J. Appl. Phys. 47 (2008) 3847-3850.
  10. H. Ogi, T. Omori, K. Hatanaka, M. Hirao, and M. Nishiyama, "Detection of Glypican-3 Proteins for Hepatocellular Carcinoma Marker Using Wireless-Electrodeless Quartz Crystal Microbalance", Jpn. J. Appl. Phys. 47, 4021-4023 (2008).(Accepted version is available.)
  11. N. Nakamura, H. Ogi, M. Hirao, T. Fukuhara, K. Shiroki, and N. Imaizumi, "Elastic Constants of Single-Crystal Rare-Earth Bismuth Iron Garnet Films", Jpn. J. Appl. Phys. (2008) in press.
  12. H. Tanei, N. Nakamura, H. Ogi, M. Hirao, R. Ikeda, "Unusual elastic behavior of nanocrystalline diamond thin films", Phys. Rev. Lett. 100, 016804 (2008).


#2007

  1. R. Tarumi, K. Nakamura, H. Ogi, and M. Hirao, "Complete set of elastic and piezoelectric coefficients of alpha-quartz at low temperatures", J. Appl. Phys. 102, 113508 (2007).
  2. N. Nakamura, H. Ogi, T. Yasui, M. Fujii, and M. Hirao, "Mechanism of Elastic Softening Behavior in Superlattice", Phys. Rev. Lett. 99, 035502 (2007).
  3. H. Ogi, M. Fujii, N. Nakamura, T. Shagawa, and M. Hirao, "Resonance acoustic-phonon spectroscopy for studying elasticity of ultrathin films", Appl. Phys. Lett. 90, 191906 (2007).
  4. H. Ogi, M. Fujii, N. Nakamura, T. Yasui, and M. Hirao, "Stiffened ultrathin Pt films confirmed by acoustic-phonon resonances", Phys. Rev. Lett. 98, 195503 (2007).(Selected for Virtual Journal of Ultrafast Science)
  5. H. Ogi, K. Motohisa, K. Hatanaka, T. Ohmori, M. Hirao, and M. Nishiyama, "Concentration Dependence of IgG-Protein A Affinity Studied by Wireless-Electrodeless QCM", Biosens. Bioelectron. 22, 3238–3242 (2007).(Accepted version is available.)
  6. H. Ogi, K. Motohisa, K. Hatanaka, T. Ohmori, M. Hirao, and M. Nishiyama, "High-Frequency Wireless and Electrodeless Quartz Crystal Microbalance Developed as Immunosensor", Jpn. J. Appl. Phys. 46, 4693-4697 (2007).(Accepted version is available.)
  7. N. Nakamura, H. Ogi, T. Nakashima, M. Hirao, and M. Nishiyama, "Fast Recovery of Elasticity of Cu Thin Films at Room Temperature Studied by Resonant-Ultrasound Spectroscopy", Jpn. J. Appl. Phys., 46, 4450-4453 (2007).
  8. R. Tarumi, A. Shibata, H. Ogi, M. Hirao, K. Takashima, and Y. Higo, "Elastic anisotropy of an Fe79Si12B9 amorphous alloy thin film studied by ultrasound spectroscopy", J. Appl. Phys. 101, 053519 (2007).
  9. H. Ogi, N. Hayama, H. Niho, M. Hirao, and T.o Morishita, "Imaging of local stiffness of damaged polycrystalline copper: Nondestructive evaluation by resonance ultrasound microscopy", IEEE Trans. Ultrason. Freq. Contr., 54, 1514-1520 (2007).(Accepted version is available.)


#2006

  1. T. Ohtani, N. Nishiyama, S. Yoshikawa, H. Ogi and M. Hirao, "Ultrasonic Attenuation and Microstructural Evolution throughout Tension-Compression Fatigue of a Low Carbon Steel", Mater. Sci. Eng. A, 442, 466-470 (2006).
  2. T. Ohtani, H. Ogi and M. Hirao, "Electromagnetic Acoustic Resonance to Assess Creep Damage in Cr-Mo-V steel", Jpn. J. Appl. Phys., 45, 4526-4533 (2006).
  3. T. Ohtani, H. Ogi and M. Hirao, "Evolution of Microstructure and Acoustic Damping during Creep of a Cr-Mo-V Ferritic Steel", Acta Materialia, 54, 2705-2713 (2006).
  4. T. Ohtani, H. Ogi and M. Hirao, "Creep-induced Microstructural Change in 304-type Austenitic Stainless Steel", Trans. ASME J. Eng. Mater. Tech. 128 (2): 234-242 (2006).
  5. H. Ogi, Y. Tomiyama, Y. Shoji, T. Mizugaki, and M. Hirao, "Effects of Dissolved and Ambient Gases on Sonochemical Degradation of Methylene Blue in High-Amplitude Resonant Mode", Jpn. J. Appl. Phys. 45, 4678-4683 (2006).(Accepted version is available.)
  6. H. Ogi, H. Niho, and M. Hirao, "Elastic-Stiffness Distribution on Dual-Phase Stainless Steel Studied by Resonance Ultrasound Microscopy", Acta Materialia, 54, 4143-4148 (2006).(Accepted version is available.)
  7. H. Ogi, M. Hirao, T. Tada, and J. Tian, "Elastic-stiffness distribution on polycrystalline copper studied by resonance ultrasound microscopy: Young's modulus microscopy", Phys. Rev. B, 73, 174107 (2006) .
  8. H. Ogi, H. Niho, and M. Hirao, "Internal-friction mapping on solids by resonance ultrasound microscopy", Appl. Phys. Lett. 88, 141110 (2006).
  9. N. Nakamura, H. Ogi, H. Nitta, H. Tanei, M. Fujii, T. Yasui, and M. Hirao, "Study of Elastic Anisotropy of Cu Thin Films by Resonant-Ultrasound Spectroscopy Coupled with Laser-Doppler Interferometry and Pump-Probe Photoacoustics", Jpn. J. Appl. Phys. 45, 4580-4584 (2006).
  10. R. Ikeda, H. Tanei, N. Nakamura, H. Ogi, A. Sawabe, M. Hirao, M. Takemoto, "Elastic constant of nanocrystalline diamond film", Diamon. Relat. Mater. 15, 729-734 (2006).
  11. H. Ogi, K. Motohisa, T. Matsumoto, K. Hatanaka, and M. Hirao, "Isolated Electrodeless High-Frequency Quartz Crystal Microbalance for Immunosensors", Anal. Chem. 78, 6903-6909 (2006).(Accepted version is available.)
  12. H. Ogi, K. Motohisa, T. Matsumoto, T. Mizugaki, and M. Hirao, "Wireless electrodeless piezomagnetic biosensor with an isolated nickel oscillator", Biosens. Bioelectron. 21, 2001-2005 (2006).(Accepted version is available.)
  13. H. Ogi, T. Ohmori, N. Nakamura, and M. Hirao, "Elastic, anelastic, and piezoelectric coefficients of alpha-quartz determined by resonance ultrasound spectroscopy", J. Appl. Phys. 100, 053511 (2006).
  14. R. Tarumi, Y. Yoshimoto, S. Shiomi, H. Ogi, M. Hirao and A. P. Tsai, "Low temperature elastic and anelastic properties of an i-AlPdMn single quasicrystal", Mater. Sci. Eng. A, 442, 39-42 (2006).
  15. R. Tarumi, Y. Kawasaki, Y. Tabe, H. Ogi, M. Hirao and T. Kagayama, "Magnetic phase transition and elastic properties of alpha-Mn at low temperature", Jpn. J. Appl. Phys. 45, 4497-4499 (2006).


#2005

  1. T. Ohtani, H. Ogi, and M. Hirao, "Acoustic damping characterization and microstructure evolution in nickel-based superalloy during creep", Int. J. Sol. and Struc. 42, 2911-2928 (2005).
  2. T. Ohtani, H. Ogi, and M. Hirao, "Dislocation damping and microstructure evolutions during creep of 2.25Cr-1Mo steels", Metal. Mater. Trans. A, 36A 411-420 (2005).
  3. R. Tarumi, T. Yonemoto, H. Ogi, M. Hirao, T. Inamura, H. Hosoda and S. Miyazaki, "Acoustic Study of Martensitic Phase Transformation in TiNbAl Shape Memory Alloy", Jpn. J. Appl. Phys. 44, 4322-4324 (2005).
  4. H. Ogi, A. Tsujimoto, S. Nishimura, and M. Hirao, "Acoustic Study of Kinetics of Vacancy Diffusion toward Dislocations in Aluminum", Acta Materialia, 53, pp. 513-517 (2005).(Accepted version is available.)
  5. J. Tian, H. Ogi, and M. Hirao, "Effect of elastic anisotropy on contact stiffness for quantitative evaluation of local Young's modulus in resonance ultrasound microscopy", Appl. Phys. Lett. 87, 204107 (2005).
  6. H. Ogi, N. Nakamura, H. Tanei, R. Ikeda, M. Hirao, and Mikio Takemoto, "Off-diagonal elastic constant and sp2-bonded graphitic grain boundary in nanocrystalline-diamond thin films", Appl. Phys. Lett. 86, 231904 (2005).
  7. N. Nakamura, H. Ogi, T. Ono, and M. Hirao, "Elastic constants and magnetic anisotropy of Co/Pt superlattice thin films", Appl. Phys. Lett. 86,111918 (2005).
  8. H. Ogi, T. Tada, J. Tian, and M. Hirao, "Resonant Ultrasound Microscopy with an Isolated Langasite Oscillator for Quantitative Evaluation of Local Elastic Constant", Jpn. J. Appl. Phys. 44, 4381-4384 (2005).(Accepted version is available.)
  9. N. Nakamura, H. Ogi, T. Ono, M. Hirao, and M. Nishiyama, "Elastic Constants and Magnetic Anisotropy of Co/Pt Superlattice: Resonance Ultrasound Spectroscopy Method&quot", Jpn. J. Appl. Phys. 44, 4427-4430 (2005).
  10. H. Ogi, N. Nakamura, and M. Hirao, "Advanced resonant-ultrasound spectroscopy for measuring anisotropic elastic constants of thin films", Fatigue Fract. Eng. Mat. Struc. 28, 657-663 (2005).
  11. N. Nakamura, H. Ogi, T. Ono, and M. Hirao, "Determination of anisotropic elastic constants of superlattice thin films by resonant-ultrasound spectroscopy" J. Appl. Phys. 97, 013532 (2005).


#2004

  1. H. Ogi, K. Wada, and M. Hirao, "Energy Trap for Axial-Shear-Wave Resonance in a Stepped Cylindrical Rod: Theory and Measurement"", Jpn. J. Appl. Phys. 43, 3024-3026 (2004). (Accepted version is available.)
  2. M. Hirao, H. Ogi, and K. Sato, "Interface Delamination of Layered Media: Acoustic Spectroscopy and Modal Analysis", IEEE｡｡Trans. Ultrason. Freq. Contr. 51, 439-443 (2004).
  3. H. Ledbetter, A. Migliori, J. Betts, R. G. Leisure, and H. Ogi, "Low-temperature elastic and piezoelectric constants of paratellurite (alpha-TeO2)", J. Appl. Phys. 96, 6201-6206 (2004).
  4. H. Ledbetter, H. Ogi, S. Kai, S. Kim, and M. Hirao, "Elastic constants of titanium's b.c.c. monocrystals", J. Appl. Phys. 95, 4642-4644 (2004).
  5. H. Ogi, S. Kai, H. Ledbetter, R. Tarumi, M. Hirao, and K. Takashima, "Titanium's high-temperature elastic constants through the hcp-bcc phase transformation", Acta Materialia, 52, 2075-2080 (2004.). (Accepted version is available.)
  6. H. Ogi, M. Fukunaga, M. Hirao, and H. Ledbetter, "Elastic constants, internal friction, and piezoelectric coefficient of alfa-TeO2", Phys. Rev. B 69, 024104 (2004).
  7. H. Ogi, N. Nakamura, M. Hirao, and H. Ledbetter, "Determination of elastic, anelastic, and piezoelectric coefficients of piezoelectric materials from a single specimen by acoustic resonance spectroscopy", Ultrasonics 42, 183-187 (2004).
  8. J. Tian, H. Ogi, and M. Hirao, "Dynamic-contact stiffness at the interface between a vibrating rigid sphere and a semi-infinite viscoelastic solid", IEEE｡｡Trans. Ultrason. Freq. Contr. 51, 1557-1563 (2004).
  9. J. Tian, H. Ogi, T. Tada, M. Hirao, and H. Ledbetter, "Local surface elastic constants by resonant-ultrasound microscopy", J. Appl. Phys. 96, 133-137 (2004).
  10. J. Tian, H. Ogi, and M. Hirao "Vibration analysis of an elastic-sphere oscillator contacting semi-infinite viscoelastic solids in resonant ultrasound microscopy", J. Appl. Phys. 95, pp. 8366-8375 (2004).
  11. N. Nakamura, H. Ogi, and M. Hirao, "Resonance ultrasound spectroscopy for measuring elastic constants of thin films", Jpn. J. Appl. Phys. 43, pp. 3115-3118 (2004).(Accepted version is available.)
  12. N. Nakamura, H. Ogi, and M. Hirao, "Elastic constants of chemical-vapor-deposition diamond thin films: Resonance ultrasound spectroscopy with laser-Doppler interferometry", Acta Materialia 52, 765-771 (2004).
  13. J. Tian, H, Ogi, T. Tada and M. Hirao, "Vibration Analysis on Electromagnetic-Resonance-Ultrasound Microscopy (ERUM) for Determining Localized Elastic Constants of Solids", J. Acoust. Soc. Am. 115, 630-636 (2004).
  14. N. Nakamura, H. Ogi, and M. Hirao, "Resonance ultrasound spectroscopy with laser-Doppler interferometry for studying elastic properties of thin films", Ultrasonics, 42, 491-494 (2004).
  15. H. Ledbetter, H. Ogi, and N. Nakamura: "Elastic, anelastic, piezoelectric coefficients of monocrystal lithium niobate", Mech. Mater. 36, 941-947 (2004).

#2003

  1. H. Ogi, E. Goda, and M. Hirao: "Increase of Efficiency of Magnetostriction SH-Wave EMAT by Angled Bias Field: Piezomagnetic Theory and Measurement", Jpn. J. Appl. Phys. 42, 3020-3024 (2003). (Accepted version is available.)
  2. H. Ogi, A. Matsuda, K. Wada, and M. Hirao: "Brightened single bubble sonoluminescence by phase-adjusted high-frequency acoustic pulse", Phys. Rev. E 67, 056301 (2003).
  3. T. Ichitsubo, S. Kai, H. Ogi, M. Hirao, and K. Tanaka, "Elastic and anelastic behaviors of Zr55A10Ni5Cu30 bulk metallic glass around the glass transition temperature under ultrasonic excitation", Scripta Mater. 49, 267-271 (2003).
  4. T. Ichitsubo, T. Seto, H. Ogi, M. Hirao, and H. Inui: "Elastic constants predicted from sintered porous MgB2 via micromechanics modeling", Mater. Lett. 57, 3910-3913 (2003).
  5. H. Ogi, N. Nakamura, K. Sato, M. Hirao, and S. Uda: "Elastic, anelastic, and piezoelectric coefficients of langasite (La3Ga5SiO14): Resonance ultrasound spectroscopy with laser-Doppler interferometry", IEEE Trans. Ultrason. Freq. Contr. 50, 553-560 (2003). (Accepted version is available.)
  6. J. Tian, H. Ogi, T. Tada, and M. Hirao, "Young's modulus mapping on SCS-6 SiCf 'Ti-6Al-4V composite by electromagnetic-resonance-ultrasound microscopy", J. Appl. Phys. 94, 6472-6476 (2003).
  7. N. Nakamura, H. Ogi, T. Ichitsubo, M. Hirao, N. Tatsumi, T. Imai, and H. Nakahata, "Elastic anisotropy and incohesive bond of chemical-vapor-deposition diamond film: Acoustic resonance measurements and micromechanics modeling", J. Appl. Phys. 94, 6405-6410 (2003).
  8. H. Ogi, J. Tian, T. Tada, and M. Hirao, "Elastic-stiffness mapping by resonance-ultrasound microscopy with isolated piezoelectric oscillator", Appl. Phys. Lett. 83, 464-466 (2003).
  9. M. Tane, T. Ichitsubo, H. Ogi, and M. Hirao, "Elastic property of aged duplex stainless steel", Scripta Mater. 48, 229-234 (2003).
  10. H. Ogi, S. Kai. T. Ichitsubo, M. Hirao, and K. Takashima, "Elastic-stiffness coefficients of a silicon-carbide fiber at elevated temperatures: Acoustic spectroscopy and micromechanics modeling", Philos. Mag. A. 83, 503-512 (2003).


#2002

  1. H. Ogi, M. Hirao, and M. Shimoyama: "Activation of TiO2 photocatalyst by single-bubble sonoluminescence for water treatment", Ultrasonics, 40, 649-650, (2002).
  2. R.Tarumi, K.Takashima and Y.Higo, Formation of oriented nanocrystals in an amorphous alloy by focused-ion-beam irradiation, Appl. Phys. Lett. 81, 4610-4612 (2002).
  3. K.Takashima, R.Tarumi and Y. Higo, Fracture behavior of micro-sized specimens prepared from an amorphous alloy thin film at ambient and elevated temperatures, MRS Symp. Proc., 695, (2002), pp.L8.4, 355-360.
  4. H. Ogi, G. Shimoike, K. Takashima, and M. Hirao: "Measurement of elastic-stiffness tensor of an anisotropic thin film by electromagnetic acoustic resonance", Ultrasonics, 40, 333-336, (2002).
  5. H. Ogi, G. Shimoike, M. hirao, K. Takashima, and Y. Higo: "Anisotropic elastic-stiffness coefficients of an amorphous Ni-P film", J. Appl. Phys. 91, 4857-4862 (2002).
  6. T. Ichitsubo, H. Ogi, S. Nishimura, T. Seto, M. Hirao, and H. Inui, "Elastic Stiffness and Ultrasonic Attenuation of Superconductor MgB2 at Low Temperatures", Phys. Rev. B 66, 052514 (2002).
  7. H. Ogi, K. Sato, T. Asada, and M. Hirao, "Complete mode identification for resonance ultrasound spectroscopy", J. Acoust. Soc. Am. 112, 2553-2557 (2002).
  8. H. Ogi, Y. Kawasaki, M. Hirao, and H. Ledbetter, "Acoustic spectroscopy of lithium niobate: Elastic and piezoelectric coefficients", J. Appl. Phys. 92, 2451-2456 (2002).
  9. T. Ichitsubo, M. Tane, H. Ogi, M. Hirao, T. Ikeda and H. Nakajim, "Anisotropic Elastic Constants of Lotus-Type Porous Copper: Measurements and Micromechanics Modeling, Acta Materialia 50, 4105-4115 (2002).
  10. T. Ichitsubo, H. Ogi, M. Hirao, K. Tanaka, M. Osawa, T. Yokokawa, T. Kobayashi, and H. Harada, "Elastic constant measurement of Ni-base superalloy with the RUS and mode selective EMAR methods", Ultrasonics 40, 211-215 (2002).
  11. H. Ogi, Y. Minami, and M. Hirao: " Acoustic study of dislocation rearrangement at later stages of fatigue: Noncontact prediction of remaining life", J. Appl. Phys. 91, 1849-1854 (2002).


#2001

  1. A.Ogura, R.Tarumi, M.Shimojo, K.Takashima and Y.Higo, "Control of nanocrystalline orientation using the application of a stress field in an amorphous alloy", Appl. Phys. Lett. 79, 1042-1044 (2001).
  2. A.Ogura, M.Sato, R.Tarumi, M.Shimojo, K.Takashima, Y.Higo, Formation of Nano-Sized Crystals During Plastic Deformation in Amorphous Alloys, MRS Symp. Proc., 634, (2001), pp.B1.10.1-10.6.
  3. R.Tarumi, A.Ogura, M.Shimojo, K.Takashima, Y.Higo: Molecular Dynamics Simulation of Nano-Sized Crystallization During Plastic Deformation in an Amorphous Metal, MRS Symp. Proc., 634, (2001), pp.B1.9.1-9.6.
  4. H. Ogi H. Ledbetter, and Sudook Kim, "Snoek Relaxation and Dislocation Damping in Aged Fe-Cu-Ni Steel", Metal. Material Trans A 32A, 1671-1677 (2001).
  5. H. Ogi, H. Ledbetter, K. Takashima, G. Shimoike, and M. Hirao, "Elastic Properties of a crossply SiCf/Ti composite at elevated temperatures", Metal.Mater. Trans. A 32A, 425-429 (2001).
  6. G. Alers and H. Ogi: "EMAT Techniques", in Handbook of Elastic Properties of Solids, Liquids, and Gases, Vol. I, edited by M. Levy, H. Bass, R. Stern, and V. Keppens, Academic Press, New York, pp. 263-281, (2001).
  7. H. Ogi, S. Aoki, and M. Hirao, "Noncontact monitoring of surface-wave nonlinearity for predicting remaining life of fatigued steels", J. Appl. Phys. 90, 438-442 (2001).
  8. M. Hirao, H. Ogi and H. Yasui, "Contactless measurement of bolt axial stress using a shear-wave electromagnetic acoustic transducer", NDT & E International 34, 179-183 (2001).


#2000

  1. H. Ogi, P. Heyliger, H. Ledbetter, and S. Kim: "Mode-selective resonance ultrasound spectroscopy of a layered parallelepiped", J. Acoust. Soc. Am. 108, 2829-2834 (2000).
  2. H. Ogi, T. Hamaguchi, and M. Hirao, "In-situ Monitoring of Ultrasonic AttenuationDuring Rotating Bending Fatigue of Carbon Steel with Electromagnetic AcousticResonance", J. Alloys and Compounds, 310, 436-439 (2000). (Accepted version is available.)
  3. T. Ohtani, H. Ogi, and M. Hirao, "Ultrasonic Attenuation Monitoringof FatigueDamage in Low Carbon Steels with Electromagnetic Acoustic Resonance (EMAR)"", J. Alloys and Compounds, 310, 440-444 (2000).
  4. H.Ogi, M. Hirao, and T. Hamaguchi, "Ultrasonic Attenuation Peak in Steel and Aluminum Alloy During Rotating Bending Fatigue", Metal. and Mater. Trans. A 31A, 1121-1128 (2000).
  5. M. Hirao, H. Ogi, N. Suzuki, and T. Ohtani, "Ultrasonic Attenuation Peak During Fatigue of Polycrystalline Copper", Acta Materialia, 48, 517-524 (2000).
  6. S. Kim, H. Ledbetter and H. Ogi, "Elastic Properties of Nb-Ti/Cu composite", J. Appl. Phys. 88, 2378-2381 (2000).
  7. H. Ogi, M. Dunn, K. Takashima, and H. Ledbetter, "Elastic Properties of SiCf / Ti Unidirectional Composite: Acoustic-Resonance Measurements and Micromechanics Predictions", J. Appl. Phys. 87, 2769-2774 (2000).
  8. H. Ogi, H. Ledbetter, and S. Kim, "Snoek Relaxation in Copper-Precipitated Alloy Steel", J. Alloys and Compounds 310, 432-435 (2000).
  9. R.Tarumi, A.Ogura, M.Shimojo, K.Takashima and Y.Higo, "Molecular Dynamics Simulation of Crystallization in an Amorphous Metal During Shear Deformation", Jpn. J. Appl. Phys. 39, L611-613 (2000).


#1999

  1. H. Ogi, A. Tsujimoto, M. Hirao, and H. Ledbetter, "Stress-Dependent Recovery of Point Defects in Deformed Aluminum: An Acoustic-Damping Study, Acta Materialia, 47, 3745-3751 (1999).
  2. H.Ogi, K. Takashima, H. Ledbetter, M. Dunn, G. Shimoike, M. Hirao, and P. Bowen: Elastic Constants and Internal Friction of an SiC-Fiber-Reinforced Ti-Alloy-Matrix Crossply Composite: Measurement and Theory, Acta Materialia 47, 2787-2796 (1999).
  3. H. Ogi, H. Ledbetter, S. Kim, and M. Hirao "Contactless Mode-Selective Resonance Ultrasound Spectroscopy: Electromagnetic Acoustic Resonance", J. Acoust. Soc. Am. 106, 660-665 (1999).
  4. Masahiko Hirao and Hirotsugu Ogi, "An SH-Wave EMAT technique for gas pipelineinspection", NDT & E International 32, 127-132 (1999).
  5. H. Ogi, M. Hirao, T. Ohtani, "Line-Focusing Electromagnetic Acoustic Transducers for Detection of Slit Defects", IEEE Trans. on Ultrason., Ferroele. Freq. Cont. 46, 341-346 (1999).


#1998

  1. H. Ogi, M. Hirao, and T. Ohtani, "Line-focusing of ultrasonic SV wave by electromagnetic acoustic transducer", J. Acoust. Soc. Am. 103, 2411-2415 (1998).
  2. M. Hirao, H. Ogi, T. Ohtani, and T. Morishita: Electromagnetic Acoustic Resonance to Assess Creep Damage in 2.25Cr-1Mo Steel, Nondestructive Characterization of Materials in Aging Systems (Materials ResearchSociety, Vol. 503),edited by R.L.Crane et al., 1998, pp.31-36.
  3. T.Ohtani, H.Ogi, T.Morishita, and M. Hirao: Noncontact Ultrasonic Spectroscopy for Detecting Creep Damage in 2.25Cr-1Mo Steel, R.E.Green, Jr.: Nondestructive Characterization of Materials VIII, 139-144 (Plenum Press, 1998).


#Other selected papers, descriptions and books

  1. M. Hirao and H. Ogi, EMATs for Science and Industry, (Kluwer-Academic, Boston, 2003).
  2. M.Hirao, H.Ogi, and H.Fukuoka: "Resonance EMAT System for Acoustoelastic Stress Evaluation in Sheet Metals", Rev. Sci. Instrum., 64, pp. 3198-3205 (1993).
  3. M.Hirao, H.Ogi, and H.Fukuoka: "Advanced Ultrasonic Method for Measuring Rail Axial Stresses with Electromagnetic Acoustic Transducer", Res. Nondestr. Eval., 5, pp. 211-223 (1994).
  4. H.Ogi, M.Hirao, and T.Honda: "Ultrasonic Attenuation and Grain Size EvaluationUsing Electromagnetic Acoustic Resonance", J. Acoust. Soc. Am., 98, pp.458-464 (1995).