Magnetoacoustic oscillations in (TMTSF)2ClO4 in high magnetic fields, where TMTSF is tetramethyltetraselenafulvalene

X. D. Shi, W. Kang, P. M. Chaikin

    Research output: Contribution to journalArticle

    Abstract

    We have studied the sound velocity in the quasi-one-dimensional organic conductor (TMTSF)2ClO4, where TMTSF is tetramethyltetraselenafulvalene. The system shows profound magnetoacoustic oscillations at low temperatures and in high magnetic fields. At the reentrant transition from the field-induced spin-density-wave (FISDW) state to the metallic state, the sound velocity shows a discontinuous jump. In the reentrant metallic phase, the amplitude of the oscillations is greatly enhanced and their phase is different by 180°from that in the FISDW state. Above ∼20 T the sound velocity shows complex, temperature-dependent structure, which may indicate sharp oscillations of the phase boundary as predicted in some recent theories.

    Original languageEnglish (US)
    Pages (from-to)1984-1987
    Number of pages4
    JournalPhysical Review B
    Volume50
    Issue number3
    DOIs
    StatePublished - 1994

    ASJC Scopus subject areas

    • Condensed Matter Physics

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