Publications/論文

Papers (Conferences)

2024

• K. Adachi, H. Wilhelm, M. P. Schmidt, M. A. Carpenter
  “Elastic and anelastic behavior associated with magnetic ordering in the skyrmion host Cu2OSeO3”
  Physical Review B 109 (2024) 144413.
• A. Ishii and N. Nakamura
  “Ab initio morphology prediction of Pd, Ag, Au, and Pt nanoparticles on (0001) sapphire substrates”
  Journal of Applied Physics 135 (2024) 094301.

2023

• N. Nakamura, K. Matsuura, and A. Ishii
  “In-situ observation of morphological change of Pd-based bimetallic nanoparticles synthesized by co-sputtering”
  Journal of Applied Physics 134 (2023) 145301.
  (Accepted Manuscript)

2022

• N. Nakamura, K. Matsuura, A. Ishii, and H. Ogi
  “Restructuring in bimetallic core-shell nanoparticles: Real-time observation”
  Physical Review B 105 (2022) 125401.
  (PDF)

2021

• N. Nakamura, K. Kashiuchi, and H. Ogi
  “Multi-mode resistive spectroscopy for precisely controlling morphology of extremely narrow gap palladium nanocluster array”
  Review of Scientific Instruments 92 (2021) 063901. 
• N. Nakamura, Y. Sakamoto, and H. Ogi
  “Spontaneous nucleation on flat surface by depletion force in colloidal suspension”
  Scientific Reports 11 (2021) 8929. 
• L. Zhou, F. Kato, N. Nakamura, Y. Oshikane, A. Nagakubo, and H. Ogi
  “MEMS hydrogen gas sensor with wireless quartz crystal resonator”
  Sensors and Actuators: B. Chemical 334 (2021) 129651.

2020

• N. Nakamura, A. Maehara, and H. Ogi
  “Development of confocal picosecond ultrasonics for visualizing propagation of acoustic wave”
  Japanese Journal of Applied Physics 59 (2020) SKKB04.
  (Accepted Manuscript) 
• L. Zhou, N. Nakamura, A. Nagakubo, and H. Ogi
  “Enhancement of sensitivity of Pd-based hydrogen-gas sensor by plasma exposure studied by wireless quartz resonator”
  Japanese Journal of Applied Physics 59 (2020) SKKB02.

2019

• N. Nakamura, T. Ueno, and H. Ogi
  “Hydrogen-gas sensing at low concentrations using extremely narrow gap palladium nanoclusters prepared by resistive spectroscopy”
  Journal of Applied Physics 126 (2019) 225104.
  (PDF) 
• L. Zhou, N. Nakamura, A. Nagakubo, and H. Ogi
  “Highly sensitive hydrogen detection using curvature change of wireless-electrodeless quartz resonators”
  Applied Physics Letters 115 (2019) 171901.
  (PDF) 
• N. Nakamura, S. Nakashima, and H. Ogi
  “Mechanical oscillation accelerating nucleation and nuclei growth in hard-sphere colloidal glass”
  Scientific Reports 9 (2019) 12836. 
• 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”
  Japanese Journal of Applied Physics 58 (2019) 075504.
  (Accepted Manuscript) 
• N. Nakamura, T. Ueno, and H. Ogi
  “Precise control of hydrogen response of semicontinuous palladium film using piezoelectric resonance method”
  Applied Physics Letters 114 (2019) 201901.
  (PDF)
  Selected as a Featured Article!

2018

• K. Adachi, H. Ogi, N. Takeuchi, N. Nakamura, H. Watanabe, T. Ito, and Y. Ozaki
  “Unusual elasticity of monoclinic β-Ga₂O₃“
  Journal of Applied Physics 124 (2018) 085102.
  (PDF)
  Selected as a Featured Article!

2017

• N. Nakamura and H. Ogi
  “Resistive spectroscopy coupled with non-contacting oscillator for detecting discontinuous-continuous transition of metallic films”
  Applied Physics Letters 111 (2017) 101902.
  (PDF) 
• 芦田一弘、滝下峰史、坪井誠也、中村暢伴、荻博次、平尾雅彦
  ”点焦点型電磁超音波センサによる探傷とスリット近傍の局所振動”
  非破壊検査 66 (2017) 437-442. 
• N. Nakamura, K. Ianayama, T. Okuno, H. Ogi, and M. Hirao
  “Accelerated crystallization of colloidal glass by mechanical oscillation”
  Scientific Reports 7 (2017) 1369. 
• Nurmalia, N. Nakamura, H. Ogi, and M. Hirao
  “EMAT pipe inspection technique using higher mode torsional guided wave T(0,2)”
  NDT & E International 87 (2017) 78-84.

2016

• 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”
  Applied Physics Letters 109 (2016) 182108.
  (PDF) 
• H. Ogi, T. Ishihara, H. Ishida, A. Nagakubo, N. Nakamura, H. Hirao
  “Thermal mode spectroscopy for thermal diffusivity of solids”
  Physical Review Letters 117 (2016) 195901.
  (PDF) 
• 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”
  Journal of Applied Physics 119 (2016) 245111.
  (PDF) 
• 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 International 83 (2016) 88-93.
  (Accepted Manuscrtip) 
• K. Jensen and N. Nakamura
  “Note: An iterative algorithm to improve colloidal particle locating”
  Review of Scientific Instruments 87 (2016) 066103. 
• A. Nagakubo, M. Arita, H. Ogi, H. Sumiya, N. Nakamura, and M. Hirao
  “Elastic constant C₁₁ of ¹²C diamond between 10 and 613 K”
  Applied Physics Letters 108 (2016) 221902.
  (PDF) 
• 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”
  Physical Review B 93 (2016) 024112.
  (PDF) 
• 芦田一弘、滝下峰史、中村暢伴、荻博次、平尾雅彦
  ”点集束型電磁超音波センサのSUS304鋼におけるスリット検出性能の評価”
  非破壊検査 65 (2016) 79-84.

2015

• N. Nakamura, N. Yoshimura, H. Ogi, and M. Hirao
  “Formation of continuous metallic film on quartz studied by noncontact resonant ultrasound spectroscopy”
  Journal of Applied Physics 118 (2015) 085302.
  (PDF) 
• N. Nakamura, H. Ogi, and M. Hirao
  “Review on acoustic transducers for resonant ultrasound spectroscopy”
  JOM 67 (2015) 1849-1855. 
• 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”
  Applied Physics Letters 106 (2015) 091901.
  (PDF) 
• T. Takishita, K. Ashida, N. Nakamura, H. Ogi, and M. Hirao
  “Development of shear-vertical wave point-focusing electromagnetic acoustic transducer”
  Japanese Journal of Applied Physics 54 (2015) 07HC04.
  (Accepted Manuscript)

2014

• A. Maehara, N. Nakamura, H. Ogi, and M. Hirao
  “Elimination of Bandwidth Effect in Attenuation Measurement with Picosecond Ultrasonics”
  Japanese Journal of Applied Physics 53 (2014) 086602.
  (Accepted Manuscript)

2013

• N. Nakamura, N. Yoshimura, H. Og, and M. Hirao
  “Elastic constants of polycrystalline L10 FePt at high temperatures”
  Journal of Applied Physics 114 (2013) 093506.
  (PDF) 
• 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”
  Nature Communications 4 (2013) 2343. 
• Nurmalia, N. Nakamura, H. Og, and M. Hirao
  “Mode Conversion and Total Reflection of Torsional Waves for Pipe Inspection”
  Japanese Journal of Applied Physics, 52 (2013) 07HC14. 
• N. Nakamura, Y. Nakamichi, H. Ogi, M. Hirao, and M. Nishiyama
  “Elastic stiffness of Co thin film at high temperatures monitored by picosecond ultrasound”
  Japanese Journal of Applied Physics 52 (2013) 07HB05.

2012

• 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”
  Review of Scientific Instruments 83 (2012) 073901.
  (PDF) 
• 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”
  Japanese Journal of Applied Physics, 51 (2012) 07GA09. 
• N. Nakamura, H. Ogi, and M. Hirao
  “Elastic, anelastic and piezoelectric coefficients of GaN”
  Journal of Applied Physics, 111 (2012) 013509.
  (PDF) 
• Nurmalia, N. Nakamura, H. Ogi, M. Hirao, and K. Nakahata
  “Mode conversion behavior of SH guided wave in a tapered plate”
  NDT& E International, 45 (2012) 156-161.

2011

• Nurmalia, N. Nakamura, H. Ogi, and M. Hirao
  “Detection of SH Guided Waves Propagating in Aluminum Plate with Thinning Region”
  Japanese Journal of Applied Physics, 50 (2011) 07HC17. 
• H. Ogi, N. Nakamura, and M. Hirao
  “Picosecond Ultrasound Spectroscopy for Studying Elastic Modulus of Thin Films: A Review”
  Nondestructive Testing And Evaluation, 26 (2011) 267-280, (invited). 
• N. Nakamura, A. Uranishi, M. Wakita, H. Ogi, M. Hirao, and M. Nishiyama
  “Elastic stiffness of L10 FePt thin film studied by picosecond ultrasonics”
  Applied Physics Letters, 98 (2011) 101911.
  (PDF)

2010

• 森田啓，荻博次，中村暢伴，平尾雅彦
  “波長可変ピコ秒超音波法の開発と酸化物薄膜の減衰評価法の提案”
  日本機械学会論文集A編, 第76巻，第771号(2010) pp.1444-1451. 
• 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”
  Physical Review B, 82 (2010) 155436.
  (PDF) 
• H. Ogi, T. Kawamoto, N. Nakamura, M. Hirao, and M. Nishiyama
  “Ultrathin Film Oscillator Biosensors Excited by Ultrafast Light Pulses”
  Biosensors and Bioelectronics, 26 (2010) pp.1273-1277. 
• N. Nakamura, Y. Kake, H. Ogi, and M. Hirao
  “Strong strain-dependent elastic stiffness in ultrathin Pt films on MgO”
  Journal of Applied Physics, 108 (2010) 043525.
  (PDF) 
• N. Nakamura, T. Nakashima, H. Ogi, M. Hirao and M. Nishiyama
  “Fast recovery of elastic constant in thin films studied by resonant-ultrasound spectroscopy”
  Journal of Applied Physics, 107 (2010) 103541.
  (PDF) 
• K. Tanigaki, T. Kusumoto, H. Ogi, N. Nakamura, and M. Hirao
  “Measurement of Elastic Constant and Refraction Index of Thin Films at Low Temperatures Using Picosecond Ultrasound”
  Japanese Journal of Applied Physics, 49 (2010) 07HB01. 
• N. Nakamura, A. Uranishi, M. Wakita, H. Ogi, and M. Hirao
  “Annealing Effect on Acoustic Property of Fe/Pt Superlattice Studied by Picosecond Ultrasound”
  Japanese Journal of Applied Physics, 49 (2010) 07HB04. 
• 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”
  Applied Physics Express, 3 (2010) 017001. 
• 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 (2010) pp.150-154.

2009

• H. Ogi, T. Shagawa, N. Nakamura, and M. Hirao
  “Extraction of Interface Stiffness in Superlattices: Proposal of the Interface Elasticity Parameter”
  Applied Physics Express, 2 (2009) 105001. 
• 谷垣健一，多根井寛志，草部浩一, 荻　博次，中村暢伴，平尾雅彦
  “第一原理計算によるナノ結晶ダイヤモンドの非sp3結合領域の構築とその弾性特性に及ぼす影響の解析”
  日本機械学会論文集A編, 第75巻，第758号(2009) pp.166-171. 
• 中村暢伴，Silvina Uribe，荻博次，平尾雅彦
  “電磁超音波センサによるSH板波のモード変換を利用したパイプの減肉検査”
  非破壊検査, 第58巻，10号(2009)pp.452-458. 
• 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”
  Applied Physics Letters, 95 (2009) 011902. 
• 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”
  Japanese Journal of Applied Physics, 48 (2009) 07GA02. 
• 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”
  Japanese Journal of Applied Physics, 48 (2009) 07GA01. 
• H. Tanei, K. Tanigaki, K. Kusakabe, H. Ogi, N. Nakamura, and M. Hirao
  “Stacking-Fault Structure Explains Unusual Elasticity of Nanocrystalline Diamonds”
  Applied Physics Letters, 94 (2009) 041914. 
• 舎川知広，荻博次，中村暢伴，平尾雅彦，小高秀文，木原直人
  ”ブリルアン振動を用いた酸化物薄膜の弾性定数測定と組織評価”
  日本機械学会論文集A編, 第75巻，第749号(2009)pp.72-78.

2008

• 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 (2008) pp.1420-1426. 
• H. Ogi, T. Shagawa, N. Nakamura, M. Hirao, H. Odaka, and N. Kihara
  “Elastic Constant and Brillouin Oscillations in Sputtered Vitreous SiO₂ Thin Films”
  Physical Review B, 78 (2008) 134204. 
• N. Nakamura, H. Ogi, and M. Hirao
  “Stable Elasticity of Epitaxial Cu Thin Films on Si”
  Physical Review B, 77 (2008) 245416. 
• N. Nakamura, H. Ogi, T. Shagawa, and M. Hirao
  “Recovery of Elastic Constant of Ultra Thin Cu Films by Low Temperature Annealing”
  Applied Physics Letters, 92 (2008) 141901. 
• 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”
  Japanese Journal of Applied Physics, 47 (2008) pp.3847-3850. 
• N. Nakamura, H. Ogi, M. Hirao, T. Fukuhara, K. Shiroki, and N. Imaizumi
  “Elastic Constants of Single-Crystal Rare-Earth Bismuth Iron Garnet Films”
  Japanese Journal of Applied Physics, 47 (2008) pp.3851-3854. 
• H. Tanei, N. Nakamura, H. Ogi, M. Hirao, and R. Ikeda
  “Unusual Elastic Behavior of Nanocrystalline Diamond Thin Films”
  Physical Review Letters, 100 (2008) 016804.

2007

• N. Nakamura, H. Ogi, T. Yasui, M. Fujii, and M. Hirao
  “Mechanism of Elastic Softening Behavior in a Superlattice”
  Physical Review Letters, 99 (2007) 035502. 
• 中村暢伴，荻　博次，藤井　誠，安井武史，平尾雅彦
  ”超格子薄膜における異常弾性軟化現象のメカニズム：ピコ秒レーザー超音波による弾性定数測定とマイクロメカニックス解析”
  材料, 第56巻，第10号(2007)pp.900-906. 
• H. Ogi, M. Fujii, N. Nakamura, T. Shagawa, and M. Hirao
  “Resonance Acoustic-Phonon Spectroscopy for Studying Elasticity of Ultrathin Films”
  Applied Physics Letters, 90 (2007) 191906. 
• H. Ogi, M. Fujii, N. Nakamura, T. Yasui, and M. Hirao
  “Stiffened Ultrathin Pt Films Confirmed by Acoustic-Phonon Resonances”
  Physical Review Letters, 98 (2007) 195503. 
• 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”
  Japanese Journal of Applied Physics, 46, 7B (2007) pp.4450-4453.

2006

• 多根井寛志，中村暢伴，荻博次，池田隆二，平尾雅彦，竹本幹男
  ”ナノ結晶CVDダイヤモンド薄膜の弾性定数と内部組織の関係”
  日本機械学会論文集（Ａ編）, 第72巻，第724号(2006)pp.1819-1824． 
• H. Ogi, T. Ohmori, N. Nakamura, and M. Hirao
  “Elastic, Anelastic, and Piezoelectric Coefficients of α-Quartz Determined by Resonance Ultrasound Spectroscopy”
  Journal of Applied Physics, 100 (2006) 053511. 
• N. Nakamura, H. Ogi, H. Nitta, H. Tanei, M. Fujii, T. Yasui, and M. Hirao
  “Study on Elastic Anisotropy of Cu Thin Films by Resonant-Ultrasonud Spectroscopy Coupled with Laser Doppler Interferometry and Pump-Probe Photoacoustics”
  Japanese Journal of Applied Physics, 45, 5B (2006) pp.4580-4584. 
• R. Ikeda, H. Tanei, N. Nakamura, H. Ogi, M. Hirao, A. Sawabe, and M. Takemoto
  “Elastic Constant of Nanocrystalline Diamond Film”
  Diamond and Related Materials, 15 (2006) pp.729-734.

2005

• 中村暢伴，荻博次，垂水竜一，安井武史，小野輝男，平尾雅彦
  ”Co/Pt超格子薄膜の弾性定数のひずみ依存性と磁気異方性”
  材料, 第54巻，第10号(2005) pp.1005-1011. 
• H. Ogi, N. Nakamura, H. Tanei, R. Ikeda, M. Hirao, and M. Takemoto
  “Off-Diagonal Elastic Constant and sp²-Bonded Graphitic Grain Boundary in Nanocrystalline-Diamond Thin Films”
  Applied Physics Letters, 86 (2005) 231904. 
• N. Nakamura, H. Ogi, M. Hirao, and T. Ono
  “Elastic constants and magnetic anisotropy of Co/Pt superlattice thin films”
  Applied Physics Letters, 86 (2005) 111918. 
• N. Nakamura, H. Ogi, T. Ono, M. Hirao, and M. Nishiyama
  “Elastic Constants and Magnetic Anisotropy in Co/Pt Superlattice: Resonance-Ultrasound-Spectroscopy Method”
  Japanese Journal of Applied Physics, 44 (2005) pp.4427-4430. 
• H. Ogi, N. Nakamura, and M. Hirao
  “Advanced resonant ultrasound spectroscopy for measuring anisotropic elastic constants of thin films”
  Fatigue & Fracture of Engineering Materials & Structures, 28 (2005) pp.657-663. 
• N. Nakamura, H. Ogi, M. Hirao, and T. Ono
  “Determination of anisotropic elastic constants of superlattice thin films by resonant-ultrasound spectroscopy”
  Journal of Applied Physics, 97 (2005) 013532.

2004

• H. Ledbetter, H. Ogi and N. Nakamura
  “Elastic, anelastic, piezoelectric coefficients of monocrystal lithium niobate”
  Mechanics of Materials, 36 (2004) pp.941-947. 
• N. Nakamura, H. Ogi, and M. Hirao
  “Resonance ultrasound spectroscopy for measuring elastic constants of thin films”
  Japanese Journal of Applied Physics, 43 (2004) pp.3115-3118. 
• N. Nakamura, H. Ogi, and M. Hirao
  “Resonance ultrasound spectroscopy with laser-doppler interferometry for studying elastic properties of thin films”
  Ultrasonics, 42 (2004) pp.491-494. 
• 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 (2004) pp.183-187. 
• 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 (2004) pp.765-771.

2003

• 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”
  Journal of Applied Physics, 94 (2003) pp.6405-6410. 
• H. Ogi, N. Nakamura, K. Sato, M. Hirao, and S. Uda
  “Elastic, anelastic, and piezoelectric coefficients of langasite: Resonance ultrasound spectroscopy with laser-Doppler interferometry”
  IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 50 (2003) pp.553-560. 
• 中村暢伴，荻博次，市坪哲，平尾雅彦，辰巳夏生，今井貴浩，中幡英章
  “CVDダイヤモンド膜の異方性弾性定数の測定とマイクロメカニクスモデリング”
  材料，第52巻，第10号，(2003)pp.1160-1165.