Reentrant effect on the transport properties of la0.7Sr 0.3MnO3 films

S. Y. Yang, W. L. Kuang, Yung Liou, W. S. Tse, S. F. Lee, Y. D. Yao

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    1 Citation (Scopus)

    Abstract

    In this work, the transport properties of polycrystalline manganite La 0.7Sr0.3MnO3 (LSMO) films were investigated. The LSMO was grown on MgO(001) and SiO2/Si(001) substrates by using a magnetron dc sputtering technique to obtain polycrystalline films. It was found that the variation in the resistance with the temperature was dominated by the spin fluctuation around the magnetic domain walls. In addition, the reentrant spin glass gave rise to the upturn resistance of the polycrystalline LSMO films at low temperatures. The spin fluctuation and the reentrant effect also led to the significant magnetoresistance occurring in the LSMO films, which is larger than the colossal magnetoresistance of the LSMO film by one order of magnitude.

    Original languageEnglish
    Pages (from-to)5754-5756
    Number of pages3
    JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
    Volume45
    Issue number7
    DOIs
    Publication statusPublished - 2006 Jul 7

    Keywords

    • Grain boundary
    • Magnetoresistance
    • Manganite
    • Polycrystalline
    • Reentrant effect
    • Thin film

    ASJC Scopus subject areas

    • Engineering(all)
    • Physics and Astronomy(all)

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