Quantum theory for the transverse Josephson plasma in high-Tc superconductors

Tomio Koyama

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)

Abstract

We formulate a quantum theory for the transverse Josephson plasma in intrinsic Josephson junctions. The electromagnetic field is quantized in this formulation. The Josephson plasma is, then, described as the massive photon in superconductors. We derive the transverse dielectric function and calculate the plasma frequency at finite temperatures in the case where the superconducting energy gap has dcursive chi 2-y2-wave symmetry. The effect of thermally excited quasiparticles on the Josephson plasma is discussed. The temperature variation of the plasma frequency near Tc is strongly dependent on the interlayer coupling constants.

Original languageEnglish
Pages (from-to)3062-3068
Number of pages7
Journaljournal of the physical society of japan
Volume68
Issue number9
DOIs
Publication statusPublished - 1999 Sep

Keywords

  • Dielectric function
  • High-T superconductors
  • Josephson plasma

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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