Josephson π states in superfluid 3He B-phase/A-phase/B-phase junctions

Munehiro Nishida, Susumu Kurihara, Noriyuki Hatakenaka

    Research output: Contribution to journalArticle

    Abstract

    The l̂ texture in the A phase of superfluid 3He B-phase/A-phase/B-phase hybrid junction was a key to form the π state with higher critical current observed in Berkeley. Here we investigate the effect of n̂ texture in the B phase on current-phase relations for the BAB junction with a fixed l̂ texture. We show that the n̂ texture greatly changes the current-phase relation just like l̂ texture does. The change is due to the n̂-texture-induced modification of the spin structure in the A phase of the BAB junction via the AB boundary condition. As a result, current-phase relations in BAB junctions are determined by the d̂ vector in the A phase depending on both n̂ and l̂ textures.

    Original languageEnglish
    Pages (from-to)84-85
    Number of pages2
    JournalPhysica B: Condensed Matter
    Volume329-333
    DOIs
    Publication statusPublished - 2003 May

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    Keywords

    • Helium 3
    • Josephson effect
    • Superfluidity

    ASJC Scopus subject areas

    • Materials Science(all)
    • Condensed Matter Physics

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