Enhancement of Josephson Quasiparticle Current in Coupled Superconducting Single-electron Transistors

D. C. Dixon*, C. P. Heij, P. Hadley, J. E. Mooij

*Corresponding author for this work

    Research output: Contribution to journalArticle

    Abstract

    The Josephson quasiparticle (JQP) cycle in a voltage-biased superconducting single-electron transistor (SSET) combines coherent Cooper pair tunneling with incoherent quasiparticle decay. We have measured a striking modification of the JQP process in a system of two SSET's having a large mutual capacitance. We find, among other effects, that the JQP current in one SSET may be enhanced by the presence of a quasiparticle current through the other SSET. A simplified model of the coupled-SSET system is presented which reproduces the enhancement effect.

    Original languageEnglish
    Pages (from-to)325-332
    Number of pages8
    JournalJournal of low temperature physics
    Volume118
    Issue number5-6
    Publication statusPublished - 2000

    ASJC Scopus subject areas

    • Physics and Astronomy (miscellaneous)

    Fingerprint Dive into the research topics of 'Enhancement of Josephson Quasiparticle Current in Coupled Superconducting Single-electron Transistors'. Together they form a unique fingerprint.

    Cite this