Phason dynamics in spin density waves

Kazumi Maki, Attila Virosztek

Research output: Contribution to journalArticle


We study the phason propagator and the electric conductivity of spin density waves (SDW) in the presence of long range Coulomb interaction. We find that in the longitudinal limit, the phason propagator is strongly modified, while in the transverse limit, the Coulomb effect disappears completely. Further in the longitudinal limit, the plasmon exhausts the optical sum rule independent of whether the system is in the normal state or in SDW. However, in the transverse limit, the plasmon contribution drops out completely from the conductivity. On the other hand, the polariton will give rise to a peculiar structure in the low frequency absorption.

Original languageEnglish
Pages (from-to)2774-2779
Number of pages6
JournalSynthetic Metals
Issue number2-3
Publication statusPublished - Apr 5 1993


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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