Spin-Spin Relaxation and Karyagin-Gol'danskii Effect in FeCl3·6H2O

N. Thrane, Georg Trumpy

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    Abstract

    The Mössbauer spectrum of FeCl3·6 H2O at room temperature is an anomalously asymmetric quadrupole pattern, which is exceptionally sensitive to external magnetic fields. The asymmetry of the spectrum is diminished both when an external magnetic field is applied and when the temperature is decreased. Qualitatively, the experimental results can be explained by a combination of a temperature-and magnetic-field-dependent spin-spin relaxation and the Karyagin-Gol'danskii effect. This implies that the zero-field splitting is about 20°K between the lowest-lying Kramers doublet, found to be the |±1 / 2〉, and the other doublets. The fluctuating magnetic field at the Fe sites is found to be directed along the axis of crystal-field symmetry.
    Original languageEnglish
    JournalPhysical Review B Condensed Matter
    Volume1
    Issue number1
    Pages (from-to)153-155
    ISSN0163-1829
    DOIs
    Publication statusPublished - 1970

    Bibliographical note

    Copyright (1970) by the American Physical Society.

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