Lanthanum deficiency effect in magnetic transition and transport property of La0.8-δCa0.2Mno3

Chang Seop Hong, Nam Hwi Hur, Yong Nam Choi

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    12 Citations (Scopus)

    Abstract

    The evolution of magnetic and electrical phases in La 0.8-δCa0.2MnO3 was investigated in terms of La deficiency. We found that the increase of the La deficiency tends to raise the Curie temperature (TC) in La0.8-δCa 0.2MnO3. The FM clusters formed in compounds with large La deficiency provide percolation paths above TC. With increasing the La defect, the transport property changes from insulating to metallic state, which is in association with the crossover from a second order to a first order magnetic phase transition in the vicinity of TC.

    Original languageEnglish
    Pages (from-to)779-783
    Number of pages5
    JournalSolid State Communications
    Volume131
    Issue number12
    DOIs
    Publication statusPublished - 2004 Sept

    Bibliographical note

    Copyright:
    Copyright 2017 Elsevier B.V., All rights reserved.

    Keywords

    • A. Magnetically ordered materials
    • A. Perovskite manganites
    • D. Colossal magnetoresistance

    ASJC Scopus subject areas

    • General Chemistry
    • Condensed Matter Physics
    • Materials Chemistry

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