Dirac fermions in α-(BEDT-TTF)2I3: Some topological properties

被引:1
作者
Morinari, Takao [1 ]
机构
[1] Kyoto Univ, Yukawa Inst Theoret Phys, Kyoto 6068502, Japan
关键词
Dirac fermions; Tilted Weyl equation; Berry phase; ORGANIC CONDUCTOR; CARBON NANOTUBES; BERRYS PHASE; PRESSURE; GRAPHENE;
D O I
10.1016/j.physb.2009.11.094
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
We study some physical properties of the Dirac fermions in the quasi-two-dimensional organic conductor alpha-(BEDT - TTF)(2)I-3 under pressure In particular we consider the Berry phase effect in impurity scattering and a topological property characterized by a Chern-Simons term by introducing a coupling between Dirac fermions and a U(1) gauge field (C) 2009 Elsevier B V All rights reserved
引用
收藏
页码:S192 / S194
页数:3
相关论文
共 24 条
[1]   Berry's phase and absence of back scattering in carbon nanotubes [J].
Ando, T ;
Nakanishi, T ;
Saito, R .
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1998, 67 (08) :2857-2862
[2]   SYNTHESIS, STRUCTURE AND PHYSICAL-PROPERTIES OF A TWO-DIMENSIONAL ORGANIC METAL, DI[BIS(ETHYLENE-DITHIOLO)TETRATHIOFULVALENE] TRIIODIDE, (BEDT-TTF)2+I3- [J].
BENDER, K ;
HENNIG, I ;
SCHWEITZER, D ;
DIETZ, K ;
ENDRES, H ;
KELLER, HJ .
MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 1984, 108 (3-4) :359-371
[3]   Unconventional integer quantum Hall effect in graphene [J].
Gusynin, VP ;
Sharapov, SG .
PHYSICAL REVIEW LETTERS, 2005, 95 (14)
[4]  
HIMURA T, UNPUB, P34422
[5]   Ab initio electronic-structure calculations for α-(BEDT-TTF)2I3 [J].
Ishibashi, S ;
Tamura, T ;
Kohyama, M ;
Terakura, K .
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 2006, 75 (01)
[6]   MAGNETOTRANSPORT PHENOMENA OF ALPHA-TYPE (BEDT-TTF)2I3 UNDER HIGH-PRESSURES [J].
KAJITA, K ;
OJIRO, T ;
FUJII, H ;
NISHIO, Y ;
KOBAYASHI, H ;
KOBAYASHI, A ;
KATO, R .
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1992, 61 (01) :23-26
[7]   Pressure-induced zero-gap semiconducting state in organic conductor α-(BEDT-TTF)2I3 salt [J].
Katayama, Shinya ;
Kobayashi, Akito ;
Suzumura, Yoshikazu .
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 2006, 75 (05)
[8]   First-principles study of electronic structure in α-(BEDT-TTF)2I3 at ambient pressure and with uniaxial strain [J].
Kino, H ;
Miyazaki, T .
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 2006, 75 (03)
[9]   Superconductivity in charge ordered organic conductor -: α-(ET)2I3 salt [J].
Kobayashi, A ;
Katayama, S ;
Noguchi, K ;
Suzumura, Y .
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 2004, 73 (11) :3135-3148
[10]   Massless fermions in organic conductor [J].
Kobayashi, Akito ;
Katayama, Shinya ;
Suzumura, Yoshikazu ;
Fukuyama, Hidetoshi .
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 2007, 76 (03)