Zobrazeno 1 - 10
of 276
pro vyhledávání: '"Shoji Ishibashi"'
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-8 (2023)
Abstract Some organic ferroelectrics have two possible switching modes: molecular reorientation and proton transfer. Typical examples include 2,5-dihydroxybenzoic acid (DHBA) and Hdabco-ReO $$_4$$ 4 (dabco = diazabicyclo[2.2.2]octane). The direction
Externí odkaz:
https://doaj.org/article/8a38917e3553411888d18239866a8a43
Autor:
Akira Uedono, Ryo Tanaka, Shinya Takashima, Katsunori Ueno, Masaharu Edo, Kohei Shima, Kazunobu Kojima, Shigefusa F. Chichibu, Shoji Ishibashi
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-8 (2021)
Abstract A process for activating Mg and its relationship with vacancy-type defects in Mg-implanted GaN were studied by positron annihilation spectroscopy. Mg+ ions were implanted with an energy of 10 keV, and the Mg concentration in the subsurface r
Externí odkaz:
https://doaj.org/article/872ed79336d94b0583d3cbbb01e7330f
Publikováno v:
Nature Communications, Vol 8, Iss 1, Pp 1-9 (2017)
Ferroelectrics based on proton tautomerism are promising in low-field and above-roomtemperature operations. Here the authors establish a procedure to optimize spontaneous polarizations, finding that the polarization in croconic acid breaks its own re
Externí odkaz:
https://doaj.org/article/54347debb76b4d20b1956b683db62ad1
Autor:
Kiyoyuki Terakura, Shoji Ishibashi
Publikováno v:
Crystals, Vol 2, Iss 3, Pp 1210-1221 (2012)
We have studied the electronic structure of Cu(tmdt)2, a material related to single-component molecular conductors, by first-principles calculations. The total energy calculations for several different magnetic configurations show that there is stron
Externí odkaz:
https://doaj.org/article/136239769da24e568f494150e7a35ad0
Autor:
Shoji Ishibashi
Publikováno v:
Science and Technology of Advanced Materials, Vol 10, Iss 2, p 024311 (2009)
Predicting electronic-band structures is a key issue in understanding the properties of materials or in materials design. In this review article, application examples of first-principles calculations, which are not based on adjustable empirical param
Externí odkaz:
https://doaj.org/article/5c633ae3569440258c63677d01ae655d
Autor:
Akira Uedono, Hideki Sakurai, Jun Uzuhashi, Tetsuo Narita, Kacper Sierakowski, Shoji Ishibashi, Shigefusa F. Chichibu, Michal Bockowski, Jun Suda, Tadakatsu Ohokubo, Nobuyuki Ikarashi, Kazuhiro Hono, Tetsu Kachi
Publikováno v:
Gallium Nitride Materials and Devices XVIII.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1492a44cc4b0d5f01da6317355bd1cb0
https://doi.org/10.1117/12.2646233
https://doi.org/10.1117/12.2646233
Autor:
Dae Woong Kim, Hyun Joo Chung, Shoji Ishibashi, Fritz Körmann, Woo Jin Cho, Seok Su Sohn, Heung Nam Han, Yuji Ikeda
Publikováno v:
Journal of Materials Science & Technology
Journal of Materials Science & Technology: an international journal in the field of materials science, 108
Journal of Materials Science & Technology: an international journal in the field of materials science, 108
High- and medium-entropy alloys (HEAs and MEAs) possess high solid-solution strength. Numerous investigations have been conducted on its impact on yield strength, however, there are limited reports regarding the relation between solid-solution streng
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ab5211dba36904ebb1f5646a4fdfd034
https://doi.org/10.1016/j.jmst.2021.07.042
https://doi.org/10.1016/j.jmst.2021.07.042
Publikováno v:
Materials Horizons.
The competition between polar and antipolar states causes the ferroelectric/antiferroelectric hybrid-like dielectric behaviors, whereas all the antipolar degenerate ground states cause distinct situations, which have been overlooked to date.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::509b3d7019faed05d059577a68e4f46f
https://doi.org/10.1039/d2mh01530g
https://doi.org/10.1039/d2mh01530g
Autor:
Akira Uedono, Naomichi Takahashi, Ryu Hasunuma, Yosuke Harashima, Yasuteru Shigeta, Zeyuan Ni, Hidefumi Matsui, Akira Notake, Atsushi Kubo, Tsuyoshi Moriya, Koji Michishio, Nagayasu Oshima, Shoji Ishibashi
Publikováno v:
2022 International Symposium on Semiconductor Manufacturing (ISSM).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e519d99648f358df582654fb47d098ba
https://doi.org/10.1109/issm55802.2022.10027133
https://doi.org/10.1109/issm55802.2022.10027133
Autor:
Taiki Kawamura, Biao Zhou, Akiko Kobayashi, Kazushi Kanoda, Eiji Nishibori, Shoji Ishibashi, Kazuya Miyagawa, Rina Takagi, Akito Kobayashi
Publikováno v:
Bulletin of the Chemical Society of Japan. 94:2540-2562
Traditional molecular conductors are composed of more than two chemical species. Two prerequisites for the design of molecular metals have long been considered to be 1) forming of the electronic ba...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::09bf49eb5d617041b95d79541fbf55a6
https://doi.org/10.1246/bcsj.20210230
https://doi.org/10.1246/bcsj.20210230