Zobrazeno 1 - 10
of 807
pro vyhledávání: '"HIROMICHI OHTA"'
Autor:
Zhiping Bian, Mitsuki Yoshimura, Ahrong Jeong, Haobo Li, Takashi Endo, Yasutaka Matsuo, Yusaku Magari, Hidekazu Tanaka, Hiromichi Ohta
Publikováno v:
Advanced Science, Vol 11, Iss 32, Pp n/a-n/a (2024)
Abstract Thermal switches that switch the thermal conductivity (κ) of the active layers are attracting increasing attention as thermal management devices. For electrochemical thermal switches, several transition metal oxides (TMOs) are proposed as a
Externí odkaz:
https://doaj.org/article/5ac69ded9a824d07bb17d27df8d62ce3
Autor:
Yuqiao Zhang, Hiromichi Ohta
Publikováno v:
NPG Asia Materials, Vol 15, Iss 1, Pp 1-9 (2023)
Abstract Oxide-based thermoelectric materials that show a high figure of merit are promising because of their good chemical and thermal stabilities and their relative harmlessness compared with chalcogenide-based state-of-the-art thermoelectric mater
Externí odkaz:
https://doaj.org/article/f89149c6d4754b6194720f24f6ca3416
Autor:
Takayoshi Katase, Xinyi He, Terumasa Tadano, Jan M. Tomczak, Takaki Onozato, Keisuke Ide, Bin Feng, Tetsuya Tohei, Hidenori Hiramatsu, Hiromichi Ohta, Yuichi Ikuhara, Hideo Hosono, Toshio Kamiya
Publikováno v:
Advanced Science, Vol 8, Iss 23, Pp n/a-n/a (2021)
Abstract Introducing artificial strain in epitaxial thin films is an effective strategy to alter electronic structures of transition metal oxides (TMOs) and to induce novel phenomena and functionalities not realized in bulk crystals. This study repor
Externí odkaz:
https://doaj.org/article/00403e0efc7141679144a58ac46e3b47
Autor:
Sohei Sukenaga, Takahiko Endo, Tsuyoshi Nishi, Hiroki Yamada, Koji Ohara, Toru Wakihara, Koji Inoue, Sakiko Kawanishi, Hiromichi Ohta, Hiroyuki Shibata
Publikováno v:
Frontiers in Materials, Vol 8 (2021)
The thermal conductivity of silicate melts and glasses is an important physical property for understanding the temperature distribution in high-temperature metallurgical processes; however, the mechanism of heat conduction in these non-crystalline ma
Externí odkaz:
https://doaj.org/article/11576218322744a9bb2513153a7d0d95
Publikováno v:
AIP Advances, Vol 10, Iss 1, Pp 015129-015129-5 (2020)
We investigate the current-induced effective magnetic field Heff in La0.67Sr0.33MnO3 (18)/LaAlO3(0,2,6)/SrTiO3 (LSMO/LAO/STO) structures by using the planar Hall effect (PHE), where numbers in parentheses give the nominal thickness of the given layer
Externí odkaz:
https://doaj.org/article/82d9a144ad414a23b5ca05d7770dcdb5
Autor:
Yuqiao Zhang, Bin Feng, Hiroyuki Hayashi, Cheng-Ping Chang, Yu-Miin Sheu, Isao Tanaka, Yuichi Ikuhara, Hiromichi Ohta
Publikováno v:
Nature Communications, Vol 9, Iss 1, Pp 1-7 (2018)
The accelerated growth of thermoelectric technology that efficiently converts waste heat to electricity necessitates the development of high-performance materials. Here, the authors experimentally demonstrate a 2D electron system with enhanced two-di
Externí odkaz:
https://doaj.org/article/953346d08dfa40f0aced9b2132ae8142
Publikováno v:
AIP Advances, Vol 9, Iss 3, Pp 035129-035129-4 (2019)
We have investigated the planar Hall effect (PHE) and the anisotropic magnetoresistance (AMR) in La0.67Sr0.33MnO3/LaAlO3/SrTiO3 (LSMO/LAO/STO) and LSMO/STO structures, where the LSMO (LAO) thickness was 13 unit cells (u.c.) and 18 u.c. (8 u.c. and 6
Externí odkaz:
https://doaj.org/article/b2829c004b624364ae94480d9103b12e
Publikováno v:
APL Materials, Vol 7, Iss 2, Pp 022507-022507-7 (2019)
Wide bandgap (Eg ∼ 3.1 eV) La-doped BaSnO3 (LBSO) has attracted increasing attention as one of the transparent oxide semiconductors since its bulk single crystal shows a high carrier mobility (∼320 cm2 V−1 s−1) with a high carrier concentrati
Externí odkaz:
https://doaj.org/article/51340388ac984cb98f30a5facfdbcbdc
Publikováno v:
AIP Advances, Vol 9, Iss 2, Pp 025122-025122-6 (2019)
Electrochromic transistors (ECTs) have attracted attention as advanced memory technology because one can use both electrochromism and switching of electrical conductivity in a nonvolatile manner. Although several solid-state ECTs have been proposed s
Externí odkaz:
https://doaj.org/article/3d9872fb74fe4fe28e41776db8cb7048
Autor:
Kaito Kanahashi, Yong-Young Noh, Won-Tae Park, Hoichang Yang, Hiromichi Ohta, Hisaaki Tanaka, Taishi Takenobu
Publikováno v:
Physical Review Research, Vol 2, Iss 4, p 043330 (2020)
Wearable thermoelectric conversion devices are one of the key technologies for future sustainable society, and flexible conducting polymer films are strong candidates for these applications. However, the thermoelectric transport mechanism of these ma
Externí odkaz:
https://doaj.org/article/194120f608674e6dba49380c8bf6b38b