Experimental reinvestigation of the thermodynamics of the field induced SDW in (TMTSF)2CIO4

U. Scheven, W. Kang, P. M. Chaikin

    Research output: Chapter in Book/Report/Conference proceedingChapter

    Abstract

    The unique nature of the spin density wave transitions induced by a moderate magnetic field in the Bechgaard salts (TMTSF)2X (where X=PF6 ClO4, etc) result from competition between the length scales set by the magnetic field and the SDW wavevector and possibly the lattice periodicity. The complex competition has led to experimental and theoretical suggestions of a phase diagram with some novel features including reentrance, arborescence and multicritical points. We have performed high resolution heat capacity and magnetocaloric measurements to reinvestigate these questions. We find no evidence for arborescence, but clear evidence of low field reentrance and a tetracritical point (as in previous work by Pesty et al) indicating coexistence of order parameters for several FISDW phases.

    Original languageEnglish (US)
    Title of host publicationJournal De Physique. IV : JP
    PublisherPubl by Editions de Physique
    Pages287-292
    Number of pages6
    Volume3
    Edition2
    StatePublished - Jul 1993
    EventProceedings of the International Workshop on Electronic Crystals (ECRYS 93) - Carry-le-Rouet, Fr
    Duration: Jun 2 1993Jun 4 1993

    Other

    OtherProceedings of the International Workshop on Electronic Crystals (ECRYS 93)
    CityCarry-le-Rouet, Fr
    Period6/2/936/4/93

    Fingerprint

    thermodynamics
    magnetic fields
    suggestion
    periodic variations
    phase diagrams
    specific heat
    salts
    high resolution

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

    Cite this

    Scheven, U., Kang, W., & Chaikin, P. M. (1993). Experimental reinvestigation of the thermodynamics of the field induced SDW in (TMTSF)2CIO4. In Journal De Physique. IV : JP (2 ed., Vol. 3, pp. 287-292). Publ by Editions de Physique.

    Experimental reinvestigation of the thermodynamics of the field induced SDW in (TMTSF)2CIO4. / Scheven, U.; Kang, W.; Chaikin, P. M.

    Journal De Physique. IV : JP. Vol. 3 2. ed. Publ by Editions de Physique, 1993. p. 287-292.

    Research output: Chapter in Book/Report/Conference proceedingChapter

    Scheven, U, Kang, W & Chaikin, PM 1993, Experimental reinvestigation of the thermodynamics of the field induced SDW in (TMTSF)2CIO4. in Journal De Physique. IV : JP. 2 edn, vol. 3, Publ by Editions de Physique, pp. 287-292, Proceedings of the International Workshop on Electronic Crystals (ECRYS 93), Carry-le-Rouet, Fr, 6/2/93.
    Scheven U, Kang W, Chaikin PM. Experimental reinvestigation of the thermodynamics of the field induced SDW in (TMTSF)2CIO4. In Journal De Physique. IV : JP. 2 ed. Vol. 3. Publ by Editions de Physique. 1993. p. 287-292
    Scheven, U. ; Kang, W. ; Chaikin, P. M. / Experimental reinvestigation of the thermodynamics of the field induced SDW in (TMTSF)2CIO4. Journal De Physique. IV : JP. Vol. 3 2. ed. Publ by Editions de Physique, 1993. pp. 287-292
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