Possible Verification of Tilted Anisotropic Dirac Cone in α-(BEDT-TTF)_2I_3 Using Interlayer Magnetoresistance(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
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概要
- 論文の詳細を見る
It is proposed that the presence of a tilted and anisotropic Dirac cone can be verified using the interlayer magnetoresistance in the layered Dirac fermion system, which is realized in quasi-two-dimensional organic compound α-(BEDT-TTF)_2I_3. Theoretical formula for the interlayer magnetoresistance is derived using the analytic Landau level wave functions and assuming local tunneling of electrons. It is shown that the resistivity as a function of the azimuthal angle of the magnetic field takes the maximum in the direction of the tilt if anisotropy of the Fermi velocity of the Dirac cone is small. The procedure is described to determine the parameters of the tilt and anisotropy.
- 社団法人日本物理学会の論文
- 2009-02-15
著者
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Tohyama Takami
Yukawa Institute For Theoretical Physics Kyoto University
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Tohyama Takami
Yukawa Inst. For Theoretical Physics Kyoto Univ.
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Morinari Takao
Yukawa Institute For Theoretical Physics Kyoto University
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HIMURA Takahiro
Yukawa Institute for Theoretical Physics, Kyoto University
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Himura Takahiro
Yukawa Institute For Theoretical Physics Kyoto University
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