Zobrazeno 1 - 10
of 114
pro vyhledávání: '"Osada, Toshihito"'
Autor:
Osada, Toshihito
We have studied the tight-binding model for the \alpha-type layered organic conductors, \alpha-(ET)2I3 and \alpha-(BETS)2I3, with a uniform interlayer coupling accompanied by spin-orbit interaction originating from the I3- anion potential. The model
Externí odkaz:
http://arxiv.org/abs/2410.04102
Autor:
Osada, Toshihito
Publikováno v:
J. Phys. Soc. Jpn. 93, 034711 (2024)
The electronic state of \alpha-type organic Dirac fermion systems such as \alpha-(ET)_2I_3 or \alpha-(BETS)_2I_3 has been studied under magnetic fields using the four-band tight-binding model with Peierls phase factors. The validity of the Dirac ferm
Externí odkaz:
http://arxiv.org/abs/2312.09413
Materials with the mesoscopic scales have provided an excellent platform for quantum-mechanical studies. Among them, the periodic oscillations of the electrical resistivity against the direct and the inverse of the magnetic fields, such as the Aharon
Externí odkaz:
http://arxiv.org/abs/2307.15418
Autor:
Kiswandhi, Andhika, Ochi, Tomotaka, Taen, Toshihiro, Sato, Mitsuyuki, Uchida, Kazuhito, Osada, Toshihito
Publikováno v:
Phys. Rev. B 107, 195106 (2023)
We performed thermoelectric Hall conductivity $\alpha_{xy}$ measurements on single-crystal graphite in the quantum limit up to 13 T. Both electrical and thermoelectric transport measurements were performed on the same crystal to extract pure $\alpha_
Externí odkaz:
http://arxiv.org/abs/2211.02306
Autor:
Kashiwagi, Masaki, Taen, Toshihiro, Uchida, Kazuhito, Watanabe, Kenji, Taniguchi, Takashi, Osada, Toshihito
Publikováno v:
Jpn. J. Appl. Phys. 61, 100907/1-5 (2022)
Moir\'e superlattice created by twist stacking has multiple physical properties. These physical properties depend on the twist angle, hence investigation of the twist angle dependency is important for the deep understanding of physical phenomena in m
Externí odkaz:
http://arxiv.org/abs/2203.05223
Publikováno v:
J. Phys. Soc. Jpn. 91, No.6, 063701/1-4 (2022)
The high-magnetic-field thermoelectric effect in nodal-line semimetals with straight nodal lines was investigated. Three-dimensional (3D) Dirac/Weyl semimetals exhibit constant thermoelectric Hall conductivity at the high-magnetic-field quantum limit
Externí odkaz:
http://arxiv.org/abs/2202.10689
Autor:
Osada, Toshihito
Publikováno v:
J. Phys. Soc. Jpn. 90, No.11, 113703/1-4 (2021)
The thermoelectric effect in a two-dimensional (2D) massless Dirac fermion (DF) system at the quantum limit is discussed to verify the prediction of high-performance thermopower in an organic conductor \alpha-(BEDT-TTF)2I3. Because of relatively larg
Externí odkaz:
http://arxiv.org/abs/2109.07031
Autor:
Osada, Toshihito, Kiswandhi, Andhika
Publikováno v:
J. Phys. Soc. Jpn. 90, No.5, 053704/1-5 (2021)
We propose a novel current-induced thermoelectric phenomenon, the nonlinear anomalous Ettingshausen effect (AEE), at zero magnetic field in inversion-asymmetric conductors. As an example, we discuss the weak charge ordering state in a layered organic
Externí odkaz:
http://arxiv.org/abs/2103.16925
Autor:
Kiswandhi, Andhika, Osada, Toshihito
Publikováno v:
J. Phys.: Condens. Matter 34, 105602 (2022)
We report the observation of nonlinear anomalous Hall effect (NLAHE) in the multilayered organic conductor $\alpha$-(BEDT-TTF)$_2$I$_3$ in the charge order (CO) insulating phase just under the critical pressure for transition into two-dimensional (2D
Externí odkaz:
http://arxiv.org/abs/2103.00300
Publikováno v:
J. Phys. Soc. Jpn. 90, No.3, 033701/1-5 (2021)
The electronic structure of weak charge-ordering (CO) state just below the critical pressure in an organic conductor \alpha-(BEDT-TTF)_2I_3 was experimentally investigated using peak structure in the temperature dependence of interlayer magnetoresist
Externí odkaz:
http://arxiv.org/abs/2101.06447