Zobrazeno 1 - 10
of 416
pro vyhledávání: '"Fujimori, Atsushi"'
Autor:
Okamoto, Jun, Wang, Ru-Pan, Chu, Yen-Yi, Shiu, Hung-Wei, Singh, Amol, Huang, Hsiao-Yu, Mou, Chung-Yu, Teh, Sucitto, Jeng, Horng-Tay, Du, Kai, Xu, Xianghan, Cheong, Sang-Wook, Du, Chao-Hung, Chen, Chien-Te, Fujimori, Atsushi, Huang, Di-Jing
X-ray circular dichroism, arising from the contrast in X-ray absorption between opposite photon helicities, serves as a spectroscopic tool to measure the magnetization of ferromagnetic materials and identify the handedness of chiral crystals. Antifer
Externí odkaz:
http://arxiv.org/abs/2312.07081
Autor:
Nonaka, Yosuke, Wakabayashi, Yuki K., Shibata, Goro, Sakamoto, Shoya, Ikeda, Keisuke, Chi, Zhendong, Wan, Yuxuan, Suzuki, Masahiro, Tanaka, Arata, Tanaka, Masaaki, Fujimori, Atsushi
Publikováno v:
Phys. Rev. Mater. 7. 044413 (2023)
We study the electronic and magnetic states of as-grown and annealed $M\text{Fe}_2\text{O}_4$(111)/$\text{Al}_2\text{O}_3$(111) ($M=\text{Co, Ni}$) thin films with various thicknesses grown on Si(111) substrates with the $\gamma$-$\text{Al}_2\text{O}
Externí odkaz:
http://arxiv.org/abs/2302.02322
Autor:
Okano, Ryo, Hotta, Tomoki, Takeda, Takahito, Araki, Kohsei, Takase, Kengo, Anh, Le Duc, Sakamoto, Shoya, Takeda, Yukiharu, Fujimori, Atsushi, Tanaka, Masaaki, Kobayashi, Masaki
Fe-doped III-V ferromagnetic semiconductor (FMS) (In,Fe)Sb is a promising material for spintronic device applications because of the n-type carrier conduction and the ferromagnetism with high Curie temperature (TC > 300 K). To clarify the mechanism o
Externí odkaz:
http://arxiv.org/abs/2202.04286
Autor:
Wan, Yuxuan, Wang, Lihai, Kuroda, Kenta, Zhang, Peng, Koshiishi, Keisuke, Suzuki, Masahiro, Kim, Jaewook, Noguchi, Ryo, Bareille, Cédric, Yaji, Koichiro, Harasawa, Ayumi, Shin, Shik, Cheong, Sang-Wook, Fujimori, Atsushi, Kondo, Takeshi
The electronic state of WTe2, a candidate of type-II Weyl semimetal, is investigated by using laser-based spin- and angle-resolved photoemission spectroscopy (SARPES). We prepare the pair of WTe2 samples, one with (001) surface and the other with (00
Externí odkaz:
http://arxiv.org/abs/2110.10944
Autor:
Takeda, Takahito, Sakamoto, Shoya, Anh, Le Duc, Takeda, Yukiharu, Fujimori, Shin-ichi, Kitamura, Miho, Horiba, Koji, Kumigashira, Hiroshi, Fujimori, Atsushi, Tanaka, Masaaki, Kobayashi, Masaki
Fe-doped III-V ferromagnetic semiconductors (FMSs) such as (In,Fe)As, (Ga,Fe)Sb, (In,Fe)Sb, and (Al,Fe)Sb are promising materials for spintronic device applications because of the availability of both n- and p-type materials and the high Curie temper
Externí odkaz:
http://arxiv.org/abs/2108.08598
Autor:
Nonaka, Yosuke, Wakabayashi, Yuki K., Shibata, Goro, Sakamoto, Shoya, Ikeda, Keisuke, Chi, Zhendong, Wan, Yuxuan, Suzuki, Masahiro, Koide, Tsuneharu, Tanaka, Masaaki, Nakane, Ryosho, Fujimori, Atsushi
Publikováno v:
AIP Advances 11, 085317 (2021)
Spinel-type CoFe$_2$O$_4$ is a ferrimagnetic insulator with the N\'eel temperature exceeding 790 K, and shows a strong cubic magnetocrystalline anisotropy (MCA) in bulk materials. However, when a CoFe$_2$O$_4$ film is grown on other materials, its ma
Externí odkaz:
http://arxiv.org/abs/2107.11204
Autor:
Shibata, Goro, Won, Choongjae, Kim, Jaewook, Nonaka, Yosuke, Ikeda, Keisuke, Wan, Yuxuan, Suzuki, Masahiro, Tanaka, Arata, Cheong, Sang-Wook, Fujimori, Atsushi
Publikováno v:
J. Phys. Chem. C 125, 12929 (2021)
Titanium disulfide TiS$_2$, which is a member of the layered transition-metal dichalcogenides with the 1T-CdI$_2$-type crystal structure, is known to exhibit a wide variety of magnetism through intercalating various kinds of transition-metal atoms of
Externí odkaz:
http://arxiv.org/abs/2103.09538
Autor:
Kobayashi, Masaki, Seki, Munetoshi, Suzuki, Masahiro, Kitamura, Miho, Horiba, Koji, Kumigashira, Hiroshi, Fujimori, Atsushi, Tanaka, Masaaki, Tabata, Hitoshi
Publikováno v:
Phys. Rev. B 105, 205103 (2022)
Inter-valence charge transfer (IVCT) is electron transfer between two metal $M$ sites differing in oxidation states through a bridging ligand: $M^{n+1} + M'^{m} \rightarrow M^{n} + M'^{m+1}$. It is considered that IVCT is related to the hopping proba
Externí odkaz:
http://arxiv.org/abs/2102.03020
Autor:
Chi, Zhendong, Lau, Yong-Chang, Zhang, Vanessa Li, Shibata, Goro, Sakamoto, Shoya, Nonaka, Yosuke, Ikeda, Keisuke, Wan, Yuxuan, Suzuki, Masahiro, Kawaguchi, Masashi, Suzuki-Sakamaki, Masako, Amemiya, Kenta, Kawamura, Naomi, Mizumaki, Masaichiro, Suzuki, Motohiro, Yang, Hyunsoo, Hayashi, Masamitsu, Fujimori, Atsushi
We have studied the Co layer thickness dependences of magnetocrystalline anisotropy (MCA), Dzyaloshinskii-Moriya interaction (DMI), and orbital moment anisotropy (OMA) in W/Co/Pt trilayers, in order to clarify their correlations with each other. We f
Externí odkaz:
http://arxiv.org/abs/2102.01283