Pseudogap phase in (Ta Se4) 2 I: Mean-field calculation

Balázs Dóra, András Ványolos, Attila Virosztek

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

We have developed the mean-field theory of coexisting charge-density waves (CDWs) and unconventional charge-density waves (UCDWs). The double phase transition manifests itself in the thermodynamic quantities and in the magnetic response, such as spin susceptibility and spin-lattice relaxation rate. Our theory applies to quasi-one-dimensional (Ta Se4) 2 I, where above the CDW transition, thermal fluctuations die out rapidly, but robust pseudogap behavior is still detected. We argue, that the fluctuations are suppressed due to UCDW, which partially gaps the Fermi surface, and causes non-Fermi-liquid (pseudogap) behavior.

Original languageEnglish
Article number125110
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume73
Issue number12
DOIs
Publication statusPublished - Mar 28 2006

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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