Domain-Wall dynamics in the disordered ferromagnet LaMnO3.075

M. Muroi, Robert Street, J.W. Cochrane, G.J. Russell

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    Abstract

    Low-field ac susceptibility measurements have been made on the cation-deficient perovskite manganite LaMnO3.075. As the temperature is increased toward T-C (122 K), the real part of the ac susceptibility (chi') exhibits discontinuous jumps at roughly regular intervals, followed by gradual decays on the high-temperature side, resulting in a series of spikes in the chi' vs temperature plot. It is argued that the spikes appear as a consequence of disaccommodation, combined with periodic, spontaneous domain-wall jumps.
    Original languageEnglish
    Pages (from-to)024423-1-024423-5
    JournalPhysical Review B
    Volume64
    Publication statusPublished - 2001

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    Muroi, M., Street, R., Cochrane, J. W., & Russell, G. J. (2001). Domain-Wall dynamics in the disordered ferromagnet LaMnO3.075. Physical Review B, 64, 024423-1-024423-5.