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  • 1
    Electronic Resource
    Electronic Resource
    Model for the a.c. hall effect of high-T c superconductors (1989)
    Springer
    Journal of superconductivity 2 (1989), S. 479-484 
    Details
    ISSN: 1572-9605
    Keywords: a.c. Hall effect ; carrier sign ; pair sign
    Source: Springer Online Journal Archives 1860-2000
    Topics: Electrical Engineering, Measurement and Control Technology , Physics
    Notes: Abstract The sign of the Cooper pairs in the superconducting state of the currently found high-T c superconductors can be best measured by utilizing the so-called a.c. Hall effect. In this experiment a d.c. magnetic field is applied normal to the surface of the superconductor and a planar electromagnetic wave perpendicularly polarized incident upon the sample surface. By measuring the reflected electric field polarized in the incident plane, one could determine the sign as well as the magnitude of the a.c. Hall coefficient. The measurement provides a direct means to determine the sign and density of the Cooper pairs in the superconducting state of the high-T c superconducting sample.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00627560
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Bulk Josephson energies in multi-gap models of highT c superconductors (1991)
    Springer
    Journal of superconductivity 4 (1991), S. 361-364 
    Details
    ISSN: 1572-9605
    Keywords: Josephson effect ; two gaps ; highT c superconductors
    Source: Springer Online Journal Archives 1860-2000
    Topics: Electrical Engineering, Measurement and Control Technology , Physics
    Notes: Abstract Multi-gap models of high temperature ceramic superconductors have been of considerable recent interest. For the case of a two-gap model (Δ1, and Δ2), there exist two separate electron pair condensate reservoirs, and a bulk Josephson free energy can be associated with electron pair transitions from one reservoir to the other. Thus, a “Josephson effect” can exist in two-gap models without the requirement of a weak link separating the two electron pair reservoirs in space. A single bulk sample Josephson electron pair free energy is here derived from the conventional BCS model of the superconducting state.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00618217
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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