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  • 1
    Electronic Resource
    Electronic Resource
    Nonlinear Seebeck effect in a model granular superconductor (1998)
    Springer
    JETP letters 67 (1998), S. 680-684 
    Details
    ISSN: 1090-6487
    Keywords: 74.80.Bj ; 74.25.Bt
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The change of the Josephson supercurrent density j s of a weakly connected granular superconductor in response to externally applied arbitrary thermal gradient ∇T (nonlinear Seebeck effect) is considered within a model of 3D Josephson junction arrays. For ∇T〉(∇T)c, where (∇T)c is estimated to be of the order of ≃104 K/m for YBCO ceramics with an average grain size d≃10 μ m, the weak-links-dominated thermopower S is predicted to become strongly ∇T-dependent.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1134/1.567701
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  • 2
    Electronic Resource
    Electronic Resource
    Piezomagnetism and stress-induced paramagnetic Meissner effect in mechanically loaded high-T c granular superconductors (1999)
    Springer
    JETP letters 70 (1999), S. 36-41 
    Details
    ISSN: 1090-6487
    Keywords: 74.80.Bj ; 74.72.−h ; 74.25.Ha
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Two novel phenomena in a weakly coupled granular superconductor under an applied stress are predicted on the basis of a recently suggested piezophase effect (a macroscopic quantum analog of the piezo-electric effect). Namely, the existence of a stress-induced paramagnetic moment in zero applied magnetic field (piezomagnetism) is considered, and its influence on the low-field magnetization (leading to a mechanically induced paramagnetic Meissner effect) is investigated. The conditions under which these effects can be experimentally measured in high-T c granular superconductors are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1134/1.568126
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    Paper (German National Licenses)
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