High-field spin dynamics of antiferromagnetic quantum spin chains

M. Enderle, L.P. Regnault, C. Broholm, D. Reich, I. Zaliznyak, M. Sieling, H.M. Rønnow, D.F. McMorrow

    Research output: Contribution to journalJournal articleResearchpeer-review

    Abstract

    The characteristic internal order of macroscopic quantum ground states in one-dimensional spin systems is usually not directly accessible, but reflected in the spin dynamics and the field dependence of the magnetic excitations. In high magnetic fields quantum phase transitions are expected. We present recent work on the high-field spin dynamics of the S = I antiferromagnetic Heisenberg chains NENP (Haldane ground state) and CsNiCl3 (quasi-1D HAF close to the quantum critical point), the uniform S = 1/2 chain CTS, and the spin-Peierls system CuGeO3. (C) 2000 Elsevier Science B,V. All rights reserved.
    Original languageEnglish
    JournalPhysica B: Condensed Matter
    Volume276-278
    Pages (from-to)560-561
    ISSN0921-4526
    DOIs
    Publication statusPublished - 2000

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