Vortex lock-in state in a layered superconductor

Paul A. Mansky, P. M. Chaikin, R. C. Haddon

    Research output: Contribution to journalArticlepeer-review


    We report clear evidence for a vortex ''lock-in'' state in the organic superconductor (BEDTTTF)2Cu(SCN)2, from ac susceptibility measurements with crossed ac and dc fields. A dc field applied parallel to the conducting planes causes a rapid decrease in the screening of the ac field. Identical behavior is initially observed for dc fields applied at an angle, but the screening recovers to nearly the zero-field value when the perpendicular field component exceeds a threshold. This indicates that vortices are locked between the layers below the threshold, and move freely along the planes. Above threshold, the vortices pierce the planes, and their motion is drastically inhibited.

    Original languageEnglish (US)
    Pages (from-to)1323-1326
    Number of pages4
    JournalPhysical Review Letters
    Issue number9
    StatePublished - Mar 1 1993

    ASJC Scopus subject areas

    • General Physics and Astronomy


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