Large magnetic entropy change in La0.67-xGdxCa0.33MnO3

H. Huang*, Zaibing Guo, D. H. Wang, Y. W. Du

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    35 Scopus citations

    Abstract

    A magnetic entropy change larger than that of gadolinium has been observed in perovskite manganites La0.67-xGdxCa0.33MnO3 (x = 0,0.05 0.1, and 0.15) with fixed carrier concentration. The large magnetic entropy change produced by the abrupt reduction of magnetization is attributed to an anomalous thermal expansion at the Curie temperature. This phenomenon indicates that perovskite manganites have some potential applications for magnetic refrigerants in an extended high-temperature range.

    Original languageEnglish (US)
    Pages (from-to)302-304
    Number of pages3
    JournalJournal of Magnetism and Magnetic Materials
    Volume173
    Issue number3
    DOIs
    StatePublished - Jan 1 1997

    Keywords

    • Curie temperature
    • Gadolinium
    • Magnetic entropy
    • Magnetic refrigerants
    • Perovskite

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Condensed Matter Physics

    Fingerprint Dive into the research topics of 'Large magnetic entropy change in La<sub>0.67-x</sub>Gd<sub>x</sub>Ca<sub>0.33</sub>MnO<sub>3</sub>'. Together they form a unique fingerprint.

    Cite this