Spectroscopic signatures of spin-charge separation in the quasi-one-dimensional organic conductor TTF-TCNQ

R. Claessen, M. Sing, U. Schwingenschlogl, P. Blaha, M. Dressel, Claus Schelde Jacobsen

Research output: Contribution to journalJournal articleResearchpeer-review

256 Downloads (Pure)

Abstract

The electronic structure of the quasi-one-dimensional organic conductor TTF-TCNQ is studied by angle-resolved photoelectron spectroscopy (ARPES). The experimental spectra reveal significant discrepancies to band theory. We demonstrate that the measured dispersions can be consistently mapped onto the one-dimensional Hubbard model at finite doping. This interpretation is further supported by a remarkable transfer of spectral weight as a function of temperature. The ARPES data thus show spectroscopic signatures of spin-charge separation on an energy scale of the conduction bandwidth.
Original languageEnglish
JournalPhysical Review Letters
Volume88
Issue number9
Pages (from-to)096402
ISSN0031-9007
DOIs
Publication statusPublished - 2002

Bibliographical note

Copyright (2002) American Physical Society

Keywords

  • HUBBARD-MODEL
  • SPECTRAL FUNCTIONS
  • BAND
  • INSULATORS

Fingerprint Dive into the research topics of 'Spectroscopic signatures of spin-charge separation in the quasi-one-dimensional organic conductor TTF-TCNQ'. Together they form a unique fingerprint.

Cite this