A
A. Miyashita
Researcher at Japan Atomic Energy Agency
Publications - 35
Citations - 779
A. Miyashita is an academic researcher from Japan Atomic Energy Agency. The author has contributed to research in topics: Thin film & Epitaxy. The author has an hindex of 12, co-authored 34 publications receiving 741 citations.
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Sulfur-doping of rutile-titanium dioxide by ion implantation: Photocurrent spectroscopy and first-principles band calculation studies
Tsutomu Umebayashi,Tetsuya Yamaki,Shunya Yamamoto,A. Miyashita,Satoru Tanaka,T. Sumita,Keisuke Asai +6 more
TL;DR: In this article, S-doped titanium dioxide (TiO2) was synthesized by ion implantation and subsequent thermal annealing, and the S atoms occupied oxygen sites for forming Ti-S bonds, as confirmed by x-ray photoelectron spectroscopy.
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Preparation of epitaxial TiO2 films by pulsed laser deposition technique
TL;DR: In this paper, anatase and rutile structures of TiO 2 films with a pulsed laser deposition (PLD) with a Nd/YAG laser under the controlled O 2 atmosphere were successfully prepared on different oxide substrates with different lattice parameters.
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Molybdenum substitutional doping and its effects on phase transition properties in single crystalline vanadium dioxide thin film
Z. P. Wu,A. Miyashita,Shunya Yamamoto,Hiroaki Abe,Isamu Nashiyama,K. Narumi,Hiroshi Naramoto +6 more
TL;DR: In this article, a doped vanadium dioxide thin film was synthesized using a Mo striped vanadium (V) target during pulsed laser ablation process, and the film structure was characterized by high resolution x-ray diffraction, xray rocking curve and Rutherford backscattering/channeling measurements.
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Single-crystalline epitaxy and twinned structure of vanadium dioxide thin film on (0001) sapphire
TL;DR: In this article, thin films prepared by pulsed-laser ablation have been investigated by high-resolution x-ray diffraction, X-ray pole-figure, Rutherford backscattering/channelling and electrical measurements.
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Poly(ether ether ketone) (PEEK)-based graft-type polymer electrolyte membranes having high crystallinity for high conducting and mechanical properties under various humidified conditions
Takashi Hamada,Shin Hasegawa,Hideyuki Fukasawa,Shin-ichi Sawada,Hiroshi Koshikawa,A. Miyashita,Yasunari Maekawa +6 more
TL;DR: In this paper, a graft-type polymer electrolyte membrane (PEEK-PEM) with wide ion exchange capacity (IEC) ranges was prepared by radiation-induced graft polymerization for investigating the relative humidity (RH) dependence of their electrochemical and mechanical properties at 80 °C.