H
Hiroshi Sawa
Researcher at Nagoya University
Publications - 180
Citations - 5139
Hiroshi Sawa is an academic researcher from Nagoya University. The author has contributed to research in topics: Superconductivity & Crystal structure. The author has an hindex of 36, co-authored 169 publications receiving 4557 citations. Previous affiliations of Hiroshi Sawa include Aoyama Gakuin University & Graduate University for Advanced Studies.
Papers
More filters
Journal ArticleDOI
Superconductivity in the Bi-Sr-Cu-O System
TL;DR: In this article, a superconducting transition with an onset temperature near 8 K was observed for the BiSr-Cu-O system through electrical resistivity and magnetic susceptibility measurements.
Journal ArticleDOI
A novel phosphor for glareless white light-emitting diodes
Hisayoshi Daicho,Takeshi Iwasaki,Kiminori Enomoto,Yasutaka Sasaki,Yuzo Maeno,Yu Shinomiya,Shinobu Aoyagi,Eiji Nishibori,Makoto Sakata,Hiroshi Sawa,Satoru Matsuishi,Hideo Hosono +11 more
TL;DR: A yellow-emitting phosphor, the Eu(2+)-doped chlorometasilicate (Ca(1-x-y,)Sr(x,)Eu(y))(7)(SiO(3))(6)Cl(2), which can be used to create glareless white light-emitter diodes, and phosphors based on this host material have much less blue absorption than other phosphors.
Journal ArticleDOI
A layered ionic crystal of polar Li@C 60 superatoms
Shinobu Aoyagi,Eiji Nishibori,Hiroshi Sawa,Kunihisa Sugimoto,Masaki Takata,Yasumitsu Miyata,Ryo Kitaura,Hisanori Shinohara,Hiroshi Okada,Takeshi Sakai,Yoshihiro Ono,Kazuhiko Kawachi,Kuniyoshi Yokoo,Shoichi Ono,Kenji Omote,Yasuhiko Kasama,Shinsuke Ishikawa,Takashi Komuro,Hiromi Tobita +18 more
TL;DR: The present method of purification and crystallization of C(60)-based metallofullerenes provides a new C( 60) fullerene material that contains a metal atom that has a unique two-dimensional structure.
Journal ArticleDOI
Transient photoinduced ‘hidden’ phase in a manganite
H. Ichikawa,Shunsuke Nozawa,Tokushi Sato,Ayana Tomita,Kouhei Ichiyanagi,Matthieu Chollet,Laurent Guérin,Nicky Dean,Andrea Cavalleri,Andrea Cavalleri,Shin-ichi Adachi,Taka-hisa Arima,Hiroshi Sawa,Yasushi Ogimoto,Masao Nakamura,Ryo Tamaki,Kenjiro Miyano,Shin-ya Koshihara +17 more
TL;DR: A 'hidden insulating phase' distinct from that found in the hitherto known phase diagram is pointed towards using picosecond time-resolved X-ray diffraction on the lattice structure of a charge and orbitally ordered Nd(0.5)Sr(0-5)MnO(3) thin film.
Journal ArticleDOI
Quantum fluctuations in spin-ice-like Pr2Zr2O7
Koutarou D. Kimura,Satoru Nakatsuji,Satoru Nakatsuji,Jiajia Wen,Collin Broholm,Collin Broholm,Collin Broholm,Matthew B. Stone,Eiji Nishibori,Hiroshi Sawa +9 more
TL;DR: Experimental evidence for quantum dynamics of magnetic monopolar quasiparticles in a new class of spin ice based on exchange interactions, Pr2Zr2O7, finds narrow pinch point features in otherwise diffuse elastic neutron scattering reflects adherence to a divergence-free constraint for disordered spins on long time scales.