Interband effects of magnetic field on Hall conductivity in the multilayered massless Dirac fermion system α-(BEDT-TTF)2I3

被引：38
|
作者：
Tajima, Naoya [1 ]
Kato, Reizo [2 ]
Sugawara, Shigeharu [3 ]
Nishio, Yutaka [1 ]
Kajita, Koji [1 ]
机构：
[1] Toho Univ, Dept Phys, JP-2748510 Funabashi, Chiba, Japan
[2] RIKEN, JP-3510198 Wako, Saitama, Japan
[3] Tokyo Univ Sci, Fac Sci & Technol, Dept Phys, JP-2788510 Noda, Chiba, Japan
来源：
PHYSICAL REVIEW B | 2012年 / 85卷 / 03期
关键词：
ORGANIC CONDUCTOR; HIGH-PRESSURE; TRANSPORT; GRAPHENE; SUPERCONDUCTIVITY; TRANSITION; BISMUTH; PHASE; METAL; SALT;
D O I：
10.1103/PhysRevB.85.033401
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We have discovered a two-dimensional zero-gap material with a layered structure in the organic conductor alpha-(BEDT-TTF)(2)I-3 under high hydrostatic pressure. In contrast to graphene, the electron-hole symmetry is not good except at the vicinity of the Dirac points. Thus, the temperature dependence of the chemical potential mu plays an important role in the transport in this system. The experimental formula of mu is revealed. We succeeded in detecting the interband effects of a magnetic field on the Hall conductivity when mu passes the Dirac point.
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页数：4
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