Magnetic properties of polycrystalline Ba0.5K0.5BiO3

H. C. Yang, M. H. Hsieh, D. S. Lee, H. E. Horng

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    7 Citations (Scopus)

    Abstract

    The temperature and magnetic-field dependence of the magnetization in Ba0.5K0.5BiO3 samples have been measured in different temperature ranges in order to study the magnetic-field penetration depth L(T), the thermodynamic critical field Hc(T), and the critical fields Hc1(T) and Hc2(T). The L determined from the powder magnetization data is 803 at zero temperature. The Hc2 derived from the resistivity measurement is 15.4 T at zero temperature. This corresponds to a coherence length of (0)=43.3. The Hc estimated from the magnetization curve is 0.25 T at zero temperature. Hc1, Hc2, and Hc are discussed in the framework of Ginzburg-Landau theory.

    Original languageEnglish
    Pages (from-to)2551-2553
    Number of pages3
    JournalPhysical Review B
    Volume42
    Issue number4
    DOIs
    Publication statusPublished - 1990 Jan 1

    ASJC Scopus subject areas

    • Condensed Matter Physics

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