Enhancement of mass anisotropy in an electron-phonon coupled model close to a Van Hove singularity

被引：1
|
作者：
Caprara, S
DelPrete, V
机构：
[1] Dipartimento di Fisica, Univ. degli Studi di Roma, 00185 Roma, P le Aldo Moro
来源：
JOURNAL OF PHYSICS-CONDENSED MATTER | 1997年 / 9卷 / 46期
关键词：
D O I：
10.1088/0953-8984/9/46/017
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
We investigate the effect of electronic mass renormalization due to the coupling of electrons to an Einstein phonon in the presence of a Van Hove singularity in the density of states, resulting from a saddle point in the bare electronic spectrum. We Show that an enhancement of mass anisotropy is produced in a wide region of parameters of our model.
引用
收藏
页码：10195 / 10202
页数：8
相关论文
共 50 条
  • [1] Van Hove singularity and apparent anisotropy in the electron-phonon interaction in graphene
    Park, Cheol-Hwan
    Giustino, Feliciano
    McChesney, Jessica L.
    Bostwick, Aaron
    Ohta, Taisuke
    Rotenberg, Eli
    Cohen, Marvin L.
    Louie, Steven G.
    PHYSICAL REVIEW B, 2008, 77 (11):
  • [2] ANISOTROPY IN TEMPERATURE VARIATION OF ELECTRON-PHONON MASS ENHANCEMENT
    TRUANT, PT
    CARBOTTE, JP
    SOLID STATE COMMUNICATIONS, 1971, 9 (18) : 1621 - &
  • [3] ANISOTROPY AND TEMPERATURE-DEPENDENCE OF ELECTRON-PHONON MASS ENHANCEMENT IN ZINC
    SINGH, GS
    AULUCK, S
    JOSHI, SK
    JOURNAL OF PHYSICS F-METAL PHYSICS, 1976, 6 (12): : L313 - L317
  • [4] ELECTRON-PHONON INTERACTION IN THE VICINITY OF THE VAN HOVE CRITICAL-POINT
    DROZHOV, YP
    PHYSICA STATUS SOLIDI B-BASIC RESEARCH, 1980, 98 (02): : 781 - 788
  • [5] Giant enhancement of anisotropy by electron-phonon interaction
    Kornilovitch, PE
    PHYSICAL REVIEW B, 1999, 59 (21): : 13531 - 13534
  • [6] ELECTRON-PHONON MASS ENHANCEMENT IN CERIUM
    MUKHOPADHYAY, G
    GYORFFY, BL
    JOURNAL OF PHYSICS F-METAL PHYSICS, 1973, 3 (07): : 1373 - 1380
  • [7] ELECTRON-PHONON MASS ENHANCEMENT IN THERMOELECTRICITY
    OPSAL, JL
    THALER, BJ
    BASS, J
    PHYSICAL REVIEW LETTERS, 1976, 36 (20) : 1211 - 1214
  • [8] Extended van Hove singularity, strong electron-phonon interaction and superconducting gap in doped Bi-2212 single crystals
    Ponomarev, Yaroslav
    Mikheev, Mikhail
    Sudakova, Marina
    Tchesnokov, Sergei
    Kuzmichev, Svetoslav
    PHYSICA STATUS SOLIDI C - CURRENT TOPICS IN SOLID STATE PHYSICS, VOL 6, NO 9, 2009, 6 (09): : 2072 - 2075
  • [9] Electron-phonon mass enhancement in metal multilayers
    Bergmann, Gerd
    PHYSICAL REVIEW B, 2007, 75 (19):
  • [10] Electron-Phonon Interaction in the High-TC Cuprates in the Framework of the Van Hove Scenario
    Bouvier, Jacqueline
    Bok, Julien
    ADVANCES IN CONDENSED MATTER PHYSICS, 2010, 2010
12345