Dynamics of the charge-spin interplay in a perovskite manganite

K. Waku, T. Suzuki, T. Nomura, Takuro Katsufuji

    Research output: Contribution to journalArticle

    2 Citations (Scopus)

    Abstract

    The interplay between charge and spin degrees of freedom is a key ingredient of the colossal magnetoresistance in perovskite manganites. However, our knowledge of such an interplay was limited to its static aspect, and very little was known regarding its dynamics. Here, we show that the ac (optical) conductivity of perovskite manganite Pr0.6Sr0.4MnO3 (TC=297K) under magnetic field does not show such a universal M2 scaling (M is the magnetization) as observed in the dc conductivity, but shows a marginal £ M £1 dependence in the critical regime. This result indicates a unique interplay between fluctuating spin and charge in this series of compounds.

    Original languageEnglish
    Article number012418
    JournalPhysical Review B - Condensed Matter and Materials Physics
    Volume72
    Issue number1
    DOIs
    Publication statusPublished - 2005

    Fingerprint

    Perovskite
    Colossal magnetoresistance
    Optical conductivity
    Manganites
    conductivity
    ingredients
    Magnetization
    degrees of freedom
    Magnetic fields
    scaling
    magnetization
    magnetic fields
    manganite
    perovskite

    ASJC Scopus subject areas

    • Condensed Matter Physics

    Cite this

    Dynamics of the charge-spin interplay in a perovskite manganite. / Waku, K.; Suzuki, T.; Nomura, T.; Katsufuji, Takuro.

    In: Physical Review B - Condensed Matter and Materials Physics, Vol. 72, No. 1, 012418, 2005.

    Research output: Contribution to journalArticle

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