Infrared anomaly of dc Josephson current in super/charge density wave/super Josephson junctions

K. Sano, S. Kurihara

    Research output: Contribution to journalArticle

    1 Citation (Scopus)


    We calculate dc Josephson current through charge density wave (CDW) region connected to two superconductors (S1, S2) by tunnel junctions at zero temperature. We discover infrared anomaly of the dc Josephson current caused by phase mode in the long junction limit. In this limit, the Josephson current is proportional to the characteristic energy consisting of physical quantities in CDW region, while in the short junction limit, the Josephson current is similar to the Ambegaokar-Baratoff formula which is proportional to the energy gap of superconductor.

    Original languageEnglish
    Pages (from-to)223-227
    Number of pages5
    JournalPhysica C: Superconductivity and its Applications
    Issue number1-4
    Publication statusPublished - 2001 Apr



    • Charge density wave
    • Collective mode
    • Electron-phase mode interaction
    • Infrared anomaly
    • Josephson junctions

    ASJC Scopus subject areas

    • Condensed Matter Physics

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