Charge localization and magnetic dynamics in ferromagnetic and charge-ordered manganites

J. L. García-Muñoz, A. Llobet, C. Frontera, C. Ritter

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    6 Citations (Scopus)

    Abstract

    The local spin dynamics in the paramagnetic phase of ferromagnetic and charge-ordered Mn perovskites has been investigated by muon spin relaxation. Significant differences are observed in the muon relaxation in ferromagnetic (F) and antiferromagnetic (AF) Ln1-xCaxMnO3 samples with x = 1/3 and 1/2. A glassy like spin dynamics is found close to TC in the former which is completely suppressed in samples with dominant AF exchange interactions. The observation of a falloff in the muon relaxation rate at TCO in Ln1/2Ca1/2MnO3 is also discussed. © 1999 American Institute of Physics.
    Original languageEnglish
    Pages (from-to)5639-5641
    JournalJournal of Applied Physics
    Volume85
    Issue number8 II B
    Publication statusPublished - 15 Apr 1999

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