Variation of electrical and magnetic properties in La0.67-xGdxCa0.33MnO3 perovskites

Zaibing Guo*, Y. W. Du, B. S. Han

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    1 Scopus citations

    Abstract

    We have investigated the variation of electrical and magnetic properties in polycrystalline La0.67-xGdxCa0.33MnO3 with the change of gadolinium content. As x increases, we observed a transition from the ferromagnetic state to the canted ferromagnetic state at x = 0.10. The magnetization and conductivity show considerable thermal hysteresis in the samples with x = 0.10 and 0.15, and magnetoresistance is larger than 65 and 90% over a temperature range approx. 30 K, respectively. Based on the sample with x = 0.15 we found an abnormal increase in magnetization in low temperatures which should be attributed to the contribution of paramagnetic gadolinium ions. For x = 0.20 and 0.25 samples, insulator conduction has been observed above 80 K, and magnetoresistance approx. 55% has been detected in the sample with x = 0.20.

    Original languageEnglish (US)
    Pages (from-to)415-418
    Number of pages4
    JournalSolid State Communications
    Volume112
    Issue number7
    DOIs
    StatePublished - Oct 12 1999

    ASJC Scopus subject areas

    • Chemistry(all)
    • Condensed Matter Physics
    • Materials Chemistry

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