We present results of the determination of the lower critical magnetic fields: Josephson He1 J, nc2 J and Abrikosov Hcl J type for the Y-123 and Bi-2212 layers onto MgO substrate. Based on the DC magnetic field dependence of the real part Z" of complex AC susceptibility we assumed that He1J = 3.10e
Fluctuation theory near the second critical magnetic field in high temperature superconductors
β Scribed by S.A. Ktitorov; Yu.V. Petrov; B.N. Shalaev
- Publisher
- Elsevier Science
- Year
- 1991
- Tongue
- English
- Weight
- 149 KB
- Volume
- 169
- Category
- Article
- ISSN
- 0921-4526
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π SIMILAR VOLUMES
Fluctuation corrections to the specific heat near Tc of a type-II superconductor in a strong magnetic field in the presence of nonmagnetic impurities are calculated by the use of the supersymmetric formalism. The case of a Poisson distribution of impurities is considered. Smearing of the phase trans
It is shown, within a simple model calculation, that the critical current density of an S/N/S junction in a high paralel magnetic field decays exponentially. The comparison of the theoretical results with experimental data for the Pb/Cd/Pb junction and YBCO films is given.