Chemical pressure induced phase transition in single and double perovskites with magnetoresistance effect

R. S. Liu, C. H. Shen, T. S. Chan, R. Gundakaram, S. F. Hu, J. G. Lin, C. Y. Huang

    Research output: Contribution to journalArticlepeer-review

    Abstract

    The effects of structural with the isovalent chemical substitution of Ca2+ into the Sr2+ sites in new series of single perovskite La0.6(Sr0.4-xCax)MnO 3 compounds (x = 0 - 0.4) and double perovskites (Sr2. xCax)FeMoO6 (0 ≤ x ≤ 2.0) systems are investigated. The phase transformation from rhombohedral to orthorhombic and tetragonal to monoclinic by increasing the Ca content has been observed in the La0.6(Sr0.6-xCax)MnO3 compounds (x = 0 - 0.4) and (Sr2-xCax)FeMoO6 (0 ≤ x ≤ 2.0) systems, respectively. All the results demonstrate that the chemical pressure and chemical size play an important role in controlling the magnetoresistance in manganites.

    Original languageEnglish
    Pages (from-to)59-61
    Number of pages3
    JournalTamkang Journal of Science and Engineering
    Volume5
    Issue number1
    Publication statusPublished - 2002 Mar

    Keywords

    • (sr ca)femoo
    • Double Perovskites
    • La(srca)mno
    • Magnetoresistance

    ASJC Scopus subject areas

    • Engineering(all)

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