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  • 1
    Electronic Resource
    Electronic Resource
    Flux motion dependence of resistive properties in superconducting YBa2Cu3O7−x thin films (1992)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 72 (1992), S. 1007-1012 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Two models of flux motion are employed to study the resistive properties of superconducting YBa2Cu3 O7−x thin films. The thermally activated flux creep model is employed to explain the dissipative behavior in the low resistivity region. However, when the resistivity is raised and approaches the normal state resistivity, the dissipative mechanism is gradually transferred from flux creep to flux flow. Based on the flux flow model, the upper critical field is estimated and shown as a function of temperature. In addition, a parallel resistivity circuit model is proposed to describe the transition behavior of the magnetic field dependence of resistivity versus current density characteristics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.351825
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Bolometric response of superconducting YBa2Cu3O7−x microbridges (1992)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 72 (1992), S. 5786-5791 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The optical properties of superconducting bolometers have been presented in YBa2Cu3O7−x epitaxial films irradiated by a light emission diode with an 0.94 μm wavelength. The better response occurring in the resistive transition region has been shown and studied. A thermal fluctuation on the flux creep behavior can be employed to illustrate the nonlinearity optical current-voltage (I-V) characteristics in the low-resistive region. However, a dissipative mechanism of flux flow should be used in explaining the best response that reveals a linear I-V relation. Measurement of the bridges yielded the bolometric responsivity of approximately 77 V/W, by illuminating a 2 Hz dynamic signal with 0.15 mW. The noise equivalent power has been estimated as 3.2×10−10 W Hz−0.5.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.351932
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
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