Neutron scattering study of the field-induced soliton lattice in CuGeO3

H.M. Rønnow, M. Enderle, D.F. McMorrow, L.P. Regnault, G. Dhalenne, A. Revcolevschi, A. Hoser, K. Prokes, P. Vorderwisch, H. Schneider

    Research output: Contribution to journalJournal articleResearchpeer-review

    Abstract

    CuGeO3 undergoes a transition from a spin-Peierls phase to an incommensurate phase at a critical field of H-c approximate to 12.5 T. In the high-field phase a lattice of solitons forms, with both structural and magnetic components, and these have been studied using neutron scattering techniques. Our results provide direct evidence for a long-ranged magnetic soliton structure which has both staggered and uniform magnetizations with amplitudes that are broadly in accord with theoretical estimates. The magnetic soliton width Gamma(m) and the field dependence of the incommensurability delta k(SP) are found to agree well with theoretical predictions.
    Original languageEnglish
    JournalPhysical Review Letters
    Volume84
    Issue number19
    Pages (from-to)4469-4472
    ISSN0031-9007
    DOIs
    Publication statusPublished - 2000

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