ISSN:
1572-9605
Keywords:
Surface resistance
;
electrophoretic films
;
Y1Ba2Cu3O7−δ grain aligned
Source:
Springer Online Journal Archives 1860-2000
Topics:
Electrical Engineering, Measurement and Control Technology
,
Physics
Notes:
Abstract The effective-medium approach is used to calculate the surface resistance of materials consisting of uniaxial grains imbedded in an isotropic background. The grains are taken to be superconducting in theab-plane. The mean free path dependence of theac-conductivity in the superconducting state is explicitly taken into account. In thec-direction the grains are assumed to have negligible conductivity. The background is taken to be a normal Drude conductor. This model should represent a reasonable description of high-T c materials. Large residual surface resistances can be fitted if the samples contain 10–20% background material, which is a good conductor. Agreement between theory and experiment can be improved if gap anisotropy is taken into account.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00625267
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