The field-induced soliton phase of CuGeO3

H.M. Rønnow, E. Mechthild, D.F. McMorrow, L.P. Regnault

    Research output: Contribution to journalConference articleResearchpeer-review

    Abstract

    The quasi-1D S = 1/2 antiferromagnet CuGeO3 undergoes a spin-Peierls transition to a dimerised singlet quantum ground state, with S = 1 carrying pairs of domain walls as elementary excitations. Applying a large magnetic field, the domain walls-solitons-can be condensed into the ground state, forming a static incommensurate soliton lattice, which has been investigated by neutron scattering. The static soliton structure was found to be in good accordance to field theoretical and numerical calculations, while a low energy incommensurate mode is interpreted as a gapped phason. We anticipate that theoretical description of this and higher energy excitations will provide general insight to the effect of structural fluctuations on correlated electron systems. (C) 2003 Elsevier Science B.V. All rights reserved.
    Original languageEnglish
    JournalPhysica B: Condensed Matter
    Volume329-333
    Pages (from-to)675-678
    ISSN0921-4526
    DOIs
    Publication statusPublished - 2003
    Event23. International conference on low temperature physics - Hiroshima (JP), 20 - 27 Aug
    Duration: 1 Jan 2002 → …

    Conference

    Conference23. International conference on low temperature physics
    CityHiroshima (JP), 20 - 27 Aug
    Period01/01/2002 → …

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