Search Results - "Nakamura, Nobutomo"

Enhancement of hydrogen response by forming an Au submonolayer on nanogap Pd nanoparticles by Nakamura, Nobutomo, Yoshikawa, Kazushi, Ishii, Akio

“…When Pd nanoparticles dispersed on a glass substrate with nanometer order gaps are exposed to H2 gas, H atoms are adsorbed on the nanoparticle surface, and the…”
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Publisher's Note: “Enhancement of hydrogen response by forming an Au submonolayer on nanogap Pd nanoparticles” [Appl. Phys. Lett. 125, 021902 (2024)] by Nakamura, Nobutomo, Yoshikawa, Kazushi, Ishii, Akio

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Spontaneous nucleation on flat surface by depletion force in colloidal suspension by Nakamura, Nobutomo, Sakamoto, Yuto, Ogi, Hirotsugu

“…Nucleation by sedimentation of colloidal particles on a flat surface is experimentally observed, and effect of attractive depletion force generated by polymers…”
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Mechanical oscillation accelerating nucleation and nuclei growth in hard-sphere colloidal glass by Nakamura, Nobutomo, Nakashima, Shizuka, Ogi, Hirotsugu

“…Crystallization from amorphous solids is generally caused by activating phonons in a wide frequency range during heat treatment. In contrast, the activation of…”
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Observation of higher stiffness in nanopolycrystal diamond than monocrystal diamond by Tanigaki, Kenichi, Ogi, Hirotsugu, Sumiya, Hitoshi, Kusakabe, Koichi, Nakamura, Nobutomo, Hirao, Masahiko, Ledbetter, Hassel

“…Diamond is the stiffest known material. Here we report that nanopolycrystal diamond synthesized by direct-conversion method from graphite is stiffer than…”
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Inspection of stress corrosion cracking in welded stainless steel pipe using point-focusing electromagnetic-acoustic transducer by Nakamura, Nobutomo, Ashida, Kazuhiro, Takishita, Takashi, Ogi, Hirotsugu, Hirao, Masahiko

“…Point-focusing electromagnetic-acoustic transducers (PF-EMATs) for shear-vertical (SV) waves were developed for crack inspection of stainless-steel pipes. The…”
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Development of shear-vertical-wave point-focusing electromagnetic acoustic transducer by Takishita, Takashi, Ashida, Kazuhiro, Nakamura, Nobutomo, Ogi, Hirotsugu, Hirao, Masahiko

“…A shear-vertical-wave point-focusing electromagnetic acoustic transducer is developed for the purpose of detecting stress corrosion cracking in stainless…”
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Accelerated crystallization of colloidal glass by mechanical oscillation by Nakamura, Nobutomo, Inayama, Kyosuke, Okuno, Tasuku, Ogi, Hirotsugu, Hirao, Masahiko

“…Crystallization of a hard-sphere colloidal glass by mechanical oscillation is investigated, and accelerated crystallization is found at a specific frequency…”
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Thermal Mode Spectroscopy for Thermal Diffusivity of Millimeter-Size Solids by Ogi, Hirotsugu, Ishihara, Tatsuya, Ishida, Hideshi, Nagakubo, Akira, Nakamura, Nobutomo, Hirao, Masahiko

“…Heat conduction possesses (thermal) modes in analogy with acoustics even without oscillation. Here, we establish thermal mode spectroscopy to measure the…”
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Elastic Stiffness of Co Thin Films at High Temperatures Monitored by Picosecond Ultrasound by Nakamura, Nobutomo, Nakamichi, Yohei, Ogi, Hirotsugu, Hirao, Masahiko, Nishiyama, Masayoshi

“…A picosecond ultrasound system for measuring the elastic stiffness of thin films at high temperatures is developed, and the elastic stiffness of Co films is…”
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Mechanism of elastic softening behavior in a superlattice by Nakamura, Nobutomo, Ogi, Hirotsugu, Yasui, Takeshi, Fujii, Makoto, Hirao, Masahiko

“…We measured the out-of-plane elastic constants C(33) of a Co/Pt superlattice by picosecond ultrasound, and found that they were closely related to the…”
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Ultrathin-film oscillator biosensors excited by ultrafast light pulses by Ogi, Hirotsugu, Kawamoto, Tetsuya, Nakamura, Nobutomo, Hirao, Masahiko, Nishiyama, Masayoshi

“…Novel thin-film oscillator biosensors are developed using picosecond ultrasound method. 100-nm silicon-nitride thin films and 16-nm Pt thin films are used, and…”
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Erratum: "Monitoring of Longitudinal-Wave Velocity and Attenuation of SrTiO3 at Low Temperatures Using Picosecond Ultrasound Spectroscopy" by Nagakubo, Akira, Yamamoto, Akihiro, Tanigaki, Kenichi, Ogi, Hirotsugu, Nakamura, Nobutomo, Hirao, Masahiko

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Measurement of Elastic Constant and Refraction Index of Thin Films at Low Temperatures Using Picosecond Ultrasound by Tanigaki, Kenichi, Kusumoto, Tatsuya, Ogi, Hirotsugu, Nakamura, Nobutomo, Hirao, Masahiko

“…In this paper, a picosecond ultrasound measurement is conducted to evaluate the low-temperature elastic and optical properties of thin films and…”
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Elastic-Constant Measurement in Oxide and Semiconductor Thin Films by Brillouin Oscillations Excited by Picosecond Ultrasound by Ogi, Hirotsugu, Shagawa, Tomohiro, Nakamura, Nobutomo, Hirao, Masahiko, Odaka, Hidefumi, Kihara, Naoto

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Elastic Constants of Co/Pt Superlattice Studied by Acoustic Measurements and Ab initio Calculations by Tanei, Hiroshi, Nakamura, Nobutomo, Kake, Yosuke, Ogi, Hirotsugu, Kusakabe, Koichi, Hirao, Masahiko

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Fast Recovery of Elasticity of Cu Thin Films at Room Temperature Studied by Resonant-Ultrasound Spectroscopy by Nakamura, Nobutomo, Ogi, Hirotsugu, Nakashima, Takeo, Hirao, Masahiko, Nishiyama, Masayoshi

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Elastic constants and magnetic anisotropy of Co ∕ Pt superlattice thin films by Nakamura, Nobutomo, Ogi, Hirotsugu, Hirao, Masahiko, Ono, Teruo

“…This study is devoted to a correlation between elastic constants and magnetic anisotropy of Co ∕ Pt superlattice thin films. Co ∕ Pt superlattice thin films…”
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Study of Elastic Anisotropy of Cu Thin Films by Resonant-Ultrasound Spectroscopy Coupled with Laser-Doppler Interferometry and Pump-Probe Photoacoustics by Nakamura, Nobutomo, Ogi, Hirotsugu, Nitta, Hiroki, Tanei, Hiroshi, Fujii, Makoto, Yasui, Takeshi, Hirao, Masahiko

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Elastic Constants of Single-Crystal Rare-Earth Bismuth Iron Garnet Films by Nakamura, Nobutomo, Ogi, Hirotsugu, Hirao, Masahiko, Fukuhara, Takashi, Shiroki, Kenichi, Imaizumi, Nobuo

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