Anomalous temperature dependence of the single-particle spectrum in the organic conductor TTF-TCNQ

N. Bulut, H. Matsueda, T. Tohyama, S. Maekawa

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

The angle-resolved photoemission spectrum of the organic conductor TTF-TCNQ exhibits an unusual transfer of spectral weight over a wide energy range for temperatures 60 K<T<260 K. In order to investigate the origin of this finding, here we report numerical results on the single-particle spectral weight A(k,ω) for the one-dimensional (1D) Hubbard model and, in addition, for the 1D extended Hubbard and the 1D Hubbard-Holstein models. Comparisons with the photoemission data suggest that the 1D Hubbard model is not sufficient for explaining the unusual T dependence, and the long-range part of the Coulomb repulsion also needs to be included.

Original languageEnglish
Article number113106
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume74
Issue number11
DOIs
Publication statusPublished - 2006 Sep 28

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Fingerprint Dive into the research topics of 'Anomalous temperature dependence of the single-particle spectrum in the organic conductor TTF-TCNQ'. Together they form a unique fingerprint.

  • Cite this