Collective modes in layered superconductors

S. N. Artemenko, A. G. Kobel'kov

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

Weakly damped collective oscillations in layered superconductors are examined theoretically. The calculation is based on kinetic equations for Green functions generalized to the case of layered superconductors with weak interlayer coupling. We show that weakly damped plasma oscillations of superconducting electrons can exist in such superconductors and calculate the spectrum of the mode. The oscillations are reminiscent of Josephson plasma oscillations in a superconducting tunnel junction. As the temperature approaches the critical one, these oscillations transform into Carlson-Goldman modes. Possibilities for detecting the plasma mode experimentally are discussed. We found distinctive features in the reflection coefficient for an electromagnetic wave incident at an arbitrary angle on a plane parallel to the layers. The presence of the mode changes also the dispersion relation for the waves propagating along a thin film of a layered superconductor.

Original languageEnglish
Pages (from-to)373-382
Number of pages10
JournalPhysica C: Superconductivity and its Applications
Volume253
Issue number3-4
DOIs
Publication statusPublished - 1 Nov 1995

Fingerprint

Superconducting materials
Plasma oscillations
plasma oscillations
oscillations
Tunnel junctions
Green's function
kinetic equations
tunnel junctions
Electromagnetic waves
interlayers
electromagnetic radiation
Green's functions
reflectance
Plasmas
Thin films
Kinetics
Electrons
thin films
electrons
Temperature

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Collective modes in layered superconductors. / Artemenko, S. N.; Kobel'kov, A. G.

In: Physica C: Superconductivity and its Applications, Vol. 253, No. 3-4, 01.11.1995, p. 373-382.

Research output: Contribution to journalArticle

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