Critical Electron-Paramagnetic-Resonance Spin Dynamics in NiCl2

R.J. Birgeneau, L.W. Rupp, H.J. Guggenheim, Per-Anker Lindgård

    Research output: Contribution to journalJournal articlepeer-review

    Abstract

    We have studied the critical behavior of the electron-paramagnetic-resonance linewidth in the planar XY antiferromagnet NiCl2; it is found that the linewidth diverges like ξ∼(T-TN)-0.7 rather than ξ5/2 predicted by the current random-phase-approximation theory.
    Original languageEnglish
    JournalPhysical Review Letters
    Volume30
    Issue number25
    Pages (from-to)1252-1255
    ISSN0031-9007
    DOIs
    Publication statusPublished - 1973

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