Renormalization Effects on Quasi-Two-Dimensional Organic Conductor α-(BEDT-TTF)2I3

被引：27
|
作者：
Isobe, Hiroki [1 ]
Nagaosa, Naoto [1 ,2 ,3 ]
机构：
[1] Univ Tokyo, Dept Appl Phys, Bunkyo Ku, Tokyo 1138656, Japan
[2] RIKEN, Cross Correlated Mat Res Grp CMRG, Wako, Saitama 3510198, Japan
[3] RIKEN, Correlated Electron Res Grp CERG, ASI, Wako, Saitama 3510198, Japan
来源：
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 2012年 / 81卷 / 11期
基金：
日本科学技术振兴机构;
关键词：
organic conductor; alpha-(BEDT-TTF)(2)I-3; tilted Dirac cone; renormalization group; GRAPHENE; (BEDT-TTF)2I3; PRESSURE; PHASE;
D O I：
10.1143/JPSJ.81.113704
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The quasi-two-dimensional organic semiconductor alpha-(BEDT-TTF)(2)I-3 [BEDT-TTF: bis(ethylenedithio)tetrathiafulvalene] has an anisotropic linear dispersion with a zero energy gap near the Fermi level. Owing to the vanishing density of states at the Fermi level, the Coulomb interaction is unscreened in this material. We theoretically study the effect of the long-range Coulomb interaction and the low-energy/long-wavelength behavior of alpha-(BEDT-TTF)(2)I-3 using the renormalization group analysis. The nearly logarithmic enhancement of the velocity reshapes tilted Dirac cones, and changes the low-temperature behavior. We also show the theoretical calculation for the site-selective spin susceptibility, which can be measured in an NMR experiment.
引用
收藏
页数：3
相关论文
共 50 条
  • [21] NMR INVESTIGATIONS OF THE ORGANIC METALS AND SUPERCONDUCTORS ALPHA-(BEDT-TTF)2I3, BETA-(BEDT-TTF)2I3 AND ALPHA-T-(BEDT-TTF)2I3
    HENNIG, I
    HAEBERLEN, U
    HEINEN, I
    SCHWEITZER, D
    KELLER, HJ
    PHYSICA C, 1988, 153 (01): : 493 - 494
  • [22] THERMAL-EXPANSION OF THE ORGANIC CONDUCTOR BETA-(BEDT-TTF)2I3
    HAMZIC, B
    CREUZET, G
    SCHWEITZER, D
    KELLER, HJ
    SOLID STATE COMMUNICATIONS, 1986, 60 (09) : 763 - 766
  • [23] Experimental study of organic zero-gap conductor α-(BEDT-TTF)2I3
    Tajima, Naoya
    Kajita, Koji
    SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS, 2009, 10 (02)
  • [24] Theoretical study of the zero-gap organic conductor α-(BEDT-TTF)2I3
    Kobayashi, Akito
    Katayama, Shinya
    Suzumura, Yoshikazu
    SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS, 2009, 10 (02)
  • [25] Voltage oscillation associated with nonlinear conductivity in the organic conductor α-(BEDT-TTF)2I3
    Tamura, Kozo
    Ozawa, Tatsuhiko
    Bando, Yoshimasa
    Kawamoto, Tadashi
    Mori, Takehiko
    JOURNAL OF APPLIED PHYSICS, 2010, 107 (10)
  • [26] Effects of uniaxial strain on transport properties of organic conductor α-(BEDT-TTF)2I3 and discovery of superconductivity
    Tajima, N
    Ebina-Tajima, A
    Tamura, M
    Nishio, Y
    Kajita, K
    JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 2002, 71 (08) : 1832 - 1835
  • [27] NEW ORGANIC SUPERCONDUCTORS KAPPA-(BEDT-TTF)2I3 AND THETA-(BEDT-TTF)2I3 - TRANSPORT PROPERTY
    KAJITA, K
    NISHIO, Y
    MORIYAMA, S
    SASAKI, W
    KATO, R
    KOBAYASHI, H
    KOBAYASHI, A
    SOLID STATE COMMUNICATIONS, 1987, 64 (10) : 1279 - 1284
  • [28] OPTICAL-PROPERTIES OF THE 2 CRYSTAL MODIFICATIONS OF THE ORGANIC CONDUCTOR (BEDT-TTF)2I3
    KAPLUNOV, MG
    YAGUBSKII, EB
    ROSENBERG, LP
    BORODKO, YG
    PHYSICA STATUS SOLIDI A-APPLIED RESEARCH, 1985, 89 (02): : 509 - 516
  • [29] Structural and electronic properties of α-(BEDT-TTF)2I3, ß-(BEDT-TTF)2I3, and κ-(BEDT-TTF)2X3 (X = I, F, Br, Cl) organic charge transfer salts
    Commeau, Benjamin
    Geilhufe, R. Matthias
    Fernando, Gayanath W.
    Balatsky, Alexander V.
    PHYSICAL REVIEW B, 2017, 96 (12)
  • [30] BAND STRUCTURE OF ORGANIC SUPERCONDUCTOR β-(BEDT-TTF)2I3
    曹阳
    薛万川
    李庆远
    ChineseScienceBulletin, 1991, (04) : 288 - 291
12345