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  • 1
    Electronic Resource
    Electronic Resource
    Doping dependence of the critical field Hc2 and the transition temperature in Zn doped YBa2(Cu1−xZnx)3O7−δ (1997)
    Springer
    Journal of low temperature physics 107 (1997), S. 491-496 
    Details
    ISSN: 1573-7357
    Keywords: 74.72 Bk ; 74.25 Fy ; 74.25 Ha
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We present data on the doping dependence of Tc in Zn doped YBa2(Cu1−xZnx)3O6.94, for x up to 10.6%. We find re-entrant behaviour in the range between 9.0 and 10.6% Zn. Data on the magneto-resistance of a sample with extremely low Tc (9% Zn, zero field resistive onset near 3.5 K) show linear normal resistance in all fields down to 1.8 K in 17.5 T. A resistively defined critical field H*, related to Hc2, shows divergent behaviour. The temperature dependence of H* is well represented by expressions derived for the Bose condensation of pre-formed pairs.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02397232
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Electrodynamic response in cuprate superconductors (1995)
    Springer
    Journal of low temperature physics 99 (1995), S. 283-286 
    Details
    ISSN: 1573-7357
    Keywords: 74.20.Mn ; 74.80.Dm ; 74.25.Fy ; 74.25.Nf ; 74.72.−h
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We present results from a microscopic theory of the electrodynamic response (E∥ĉ) in high-Tc superconductors for an array of coupled superconducting layers. In this model each layer is described by a two-dimensional Fermi liquid, and interlayer coupling is mediated by thermally activated incoherent scattering processes. We discuss the surface resistance in the c-direction and show that a d-state symmetry of the order parameter leads to an anomalous T-dependence at frequencies below Δo, and imposes rather stringent conditions on the interlayer coupling.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00752294
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    Paper (German National Licenses)
    Fulltext
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