Charge order in quasi-one-dimensional organic charge-transfer solids

R. T. Clay, D. K. Campbell, S. Mazumdar

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

We examine two proposed models of the observed charge ordering (CO) in the quasi-1D, 1/4-filled organic charge transfer solids. The models are characterized by the site charge densities ..1010.. and ..1100.. respectively. Using a Peierls-extended Hubbard model to include both electron-electron and electron-phonon interactions, we show that 1) the ..1010..CO can occur only when the nearest-neighbor Coulomb repulsion is sufficiently strong; 2) a spin-Peierls state can coexist with the ..1010..CO; and 3) experimental evidence clearly supports ..1100.. CO in the (TMTSP) and the 1:2 anionic CTS, while in the (TMTTF) salts the nature of the order is not yet clear.

Original languageEnglish (US)
Pages (from-to)681-682
Number of pages2
JournalSynthetic Metals
Volume135-136
DOIs
StatePublished - Apr 4 2003

Keywords

  • Organic conductors based on radical cation and/or anion salts
  • Organic superconductors

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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