Zobrazeno 1 - 10
of 770
pro vyhledávání: '"Kobayashi, Koji"'
We theoretically study the spin Hall effect in a simple tight-binding model of stacked-kagome Weyl semimetal Co3Sn2S2 with ferromagnetic ordering. We focus on the two types of the spin Hall current: one flowing in the in-plane direction with respect
Externí odkaz:
http://arxiv.org/abs/2305.15144
The effective tight-binding model with compensated ferrimagnetic inverse-Heusler lattice Ti$_{2}$MnAl, candidate material of magnetic Weyl semimetal, is proposed. The energy spectrum near the Fermi level, the configurations of the Weyl points, and th
Externí odkaz:
http://arxiv.org/abs/2304.14009
We investigate magnetic orderings on kagome lattice numerically from the tight-binding Hamiltonian of electrons, governed by the filling factor and spin-orbit coupling (SOC) of electrons. We find that even a simple kagome lattice model can host both
Externí odkaz:
http://arxiv.org/abs/2202.06665
Autor:
Ito, Naohiro, Nomoto, Takuya, Kobayashi, Koji, Mankovsky, Sergiy, Nomura, Kentaro, Arita, Ryotaro, Ebert, Hubert, Koretsune, Takashi
We develop a formulation of the coherent potential approximation (CPA) on the basis of the Wannier representation to develop a computationally efficient method for the treatment of homogeneous random alloys that is independent on the applied first-pr
Externí odkaz:
http://arxiv.org/abs/2111.15109
Autor:
Ozaki, Noriko, Sakamoto, Naoaki, Horikami, Daiki, Tachibana, Yuri, Nagata, Nanae, Kobayashi, Koji, Arai, Yoshino Taira, Sone, Masayoshi, Hirayama, Kazuhiro, Murata, Takahisa
Publikováno v:
In Allergology International July 2024 73(3):464-472
Autor:
Hirose, Ryo, Onaka-Masada, Ayumi, Okuyama, Ryosuke, Kadono, Takeshi, Kobayashi, Koji, Suzuki, Akihiro, Koga, Yoshihiro, Kurita, Kazunari
Publikováno v:
In Materials Science in Semiconductor Processing May 2024 174
Autor:
Kobayashi, Koji, Nomura, Kentaro
Publikováno v:
J. Phys. Soc. Jpn. 91, 013703 (2022)
We study the intrinsic and extrinsic Hall effects in disordered magnetic Weyl semimetals numerically. We show that in Weyl metals, where the Fermi energy deviates from the Weyl point, the Hall and longitudinal conductances exhibit a specific relation
Externí odkaz:
http://arxiv.org/abs/2110.12236
Autor:
Goto, Masahisa, Kobayashi, Koji M.
Given an undirected simple graph, a subset of the vertices of the graph is a {\em dominating set} if every vertex not in the subset is adjacent to at least one vertex in the subset. A subset of the vertices of the graph is a {\em connected dominating
Externí odkaz:
http://arxiv.org/abs/2109.14108
Publikováno v:
Phys. Rev. B 104, 045302 (2021)
Motivated by recent transport experiments, we theoretically study the quantum Hall effect in topological semimetal films. Owing to the confinement effect, the bulk subbands originating from the chiral Landau levels establish energy gaps that have qua
Externí odkaz:
http://arxiv.org/abs/2105.06171
Autor:
Kidani, Tomoki, Ozaki, Tomohiko, Nakajima, Shin, Kanemura, Yonehiro, Izutsu, Nobuyuki, Kawamoto, Saki, Taki, Kowashi, Murakami, Keijiro, Nishizawa, Naoki, Kobayashi, Koji, Fujimi, Yosuke, Fujinaka, Toshiyuki
Publikováno v:
In World Neurosurgery December 2023 180:e667-e675