Surface characterization and surface electronic structure of organic quasi-one-dimensional charge transfer salts

M. Sing, U. Schwingenschlögl, R. Claessen, M. Dressel, Claus Schelde Jacobsen

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Abstract

We have thoroughly characterized the surfaces of the organic charge-transfer salts TTF-TCNQ and (TMTSF)(2)PF6 which are generally acknowledged as prototypical examples of one-dimensional conductors. In particular x-ray-induced photoemission spectroscopy turns out to be a valuable nondestructive diagnostic tool. We show that the observation of generic one-dimensional signatures in photoemission spectra of the valence band close to the Fermi level can be strongly affected by surface effects. Especially, great care must be exercised taking evidence for an unusual one-dimensional many-body state exclusively from the observation of a pseudogap.
Original languageEnglish
JournalPhysical Review B Condensed Matter
Volume67
Issue number12
Pages (from-to)125402
ISSN0163-1829
DOIs
Publication statusPublished - 2003

Bibliographical note

Copyright (2003) American Physical Society

Keywords

  • THIN-FILMS
  • LUTTINGER-LIQUID BEHAVIOR
  • METAL-INSULATOR-TRANSITION
  • ENERGY
  • TTF-TCNQ
  • BECHGAARD SALTS
  • PHOTOELECTRON-SPECTROSCOPY
  • OQUINODIMETHANE
  • TETRATHIAFULVALENE-TETRACYAN
  • PHOTOEMISSION SPECTROSCOPY
  • SCANNING-TUNNELING-MICROSCOPY

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