New aspects of non-Fermi-liquid behaviour in Q1D metals

Research output: Contribution to journalArticle

Abstract

The second order corrections to magnetic moment, M, magnetic susceptibility, χ, and specific heat, C, due to electron-electron ("e-e") interactions are calculated in a Q1D conductor (TMTSF)2ClO4 in a metallic phase. Strong magnetic oscillations of these thermodynamical quantities are found to exist due to the oscillations of matrix elements of "e-e" interactions in the Peierls channel under the condition of magnetic breakdown. We note that the frequency of the oscillations corresponds to open ("interference") orbits that contradicts Fermi liquid description of quasiparticles. We demonstrate that the relative magnitudes of these forbidden oscillations are anomalously large: δχ/χ0 ∼ 1 - 10, δM/M0 ∼ 10-1, and δC/C0 ∼ 10-2.

Original languageEnglish (US)
Pages (from-to)1615-1616
Number of pages2
JournalSynthetic Metals
Volume85
Issue number1-3
StatePublished - Mar 15 1997
Externally publishedYes

Keywords

  • Many-body and quasiparticle theories
  • 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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