Transverse optical plasmons in layered superconductors

D. van der Marel*, A. Tsvetkov

*Corresponding author for this work

    Research output: Contribution to journalArticleAcademicpeer-review

    111 Citations (Scopus)

    Abstract

    We discuss the possible existance of transverse optical plasma modes in superlattices consisting of Josephson coupled superconducting layers. These modes appear as resonances in the current-current correlation function, as opposed to the usual plasmons which are poles in the density-density channel. We consider both bilayer superlattices, and single layer lattices with a spread of interlayer Josephson couplings. We show that our model is in quantitative agreement with the recent experimental observation by a number of groups of a peak at the Josephson plasma frequency in the optical conductivity of La1.85Sr0.15CuO4.

    Original languageEnglish
    Pages (from-to)3165-3168
    Number of pages4
    JournalCzechoslovak Journal of Physics
    Volume46
    DOIs
    Publication statusPublished - 1996
    Event21st International Conference on Low Temperature Physics (LT 21) - , Czech Republic
    Duration: 8-Aug-199614-Aug-1996

    Keywords

    • CUPRATE SUPERCONDUCTORS
    • COLLECTIVE MODES
    • RESONANCE
    • PHASE

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