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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Journal of superconductivity 8 (1995), S. 79-85 
    ISSN: 1572-9605
    Keywords: Susceptibility ; mixed state ; pinning ; structure vortex lattice transition
    Source: Springer Online Journal Archives 1860-2000
    Topics: Electrical Engineering, Measurement and Control Technology , Physics
    Notes: Abstract Magnetic susceptibility measurements on YBa2Cu3O7−δ rod materials by an ac balanced bridge technique are made in fields of up to 50 mT and over the temperature range from 4.2 K to just belowT c . A largeH c2 accompanied by characteristic form of hysteresis has been shown. A modified critical state model of Anderson [Phys. Rev. Lett. 9, 309 (1962)] is adapted to fit the curves in the region where hysteresis is dominant because of flux trapping. A conceptual model of structure vortex lattice transition due to the intrinsic pinning of the layering configuration is suggested, which can provide an explanation of the magnetic behaviour of oxide superconductors.
    Type of Medium: Electronic Resource
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