Plasmon dispersion and damping in double-layer electron systems

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Davoudi B., Tanatar B.

Solid State Communications, vol.117, no.2, pp.89-92, 2000 (SCI-Expanded) identifier

  • Publication Type: Article / Article
  • Volume: 117 Issue: 2
  • Publication Date: 2000
  • Doi Number: 10.1016/s0038-1098(00)00424-5
  • Journal Name: Solid State Communications
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.89-92
  • Ankara University Affiliated: No

Abstract

We use dynamical local-field corrections to study the plasmon dispersion and damping in double-layer electron systems. The wave vector and frequency-dependent local-fields describing the exchange-correlation effects are obtained within the quantum version of self-consistent field approach. The calculated plasmon dispersions are modified by the dynamic local-fields at intermediate wave vectors (i.e. q to approximately kF). The plasmons are damped outside the single-particle excitation region.