Lattice effect in Pr doped La-Sr-Mn-O perovskite

Zaibing Guo*, N. Zhang, W. P. Ding, W. Yang, J. R. Zhang, Y. W. Du

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    17 Scopus citations

    Abstract

    We have measured resistivity, magnetization and magnetoresistance in polycrystalline La0.7-xPrxSr0.3MnO3 with fixed carrier concentration. With decreasing the average ionic radius of the La site (rA), we found a decrease in Tc, an increase in resistivity at Tc, and an increase in the magnitude of the magnetoresistance. The samples show a metal-insulator transition in the high-temperature paramagnetic phase with the variation of (rA). These results demonstrate the close relationship between (rA) and the band structure.

    Original languageEnglish (US)
    Pages (from-to)769-771
    Number of pages3
    JournalSolid State Communications
    Volume100
    Issue number11
    DOIs
    StatePublished - Dec 1 1996

    Keywords

    • B. chemical synthesis
    • C. electronic band structure
    • C. phase transitions

    ASJC Scopus subject areas

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

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