| Autor: |
Luzhbin, D. A., Kasatkin, A. L., Pan, V. M. |
| Předmět: |
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| Zdroj: |
Low Temperature Physics; May2001, Vol. 27 Issue 5, p333, 6p |
| Abstrakt: |
The problem of the surface microwave impedance of a superconducting film in a static magnetic field H parallel to the surface is considered. In films of thickness d<λ (λ is the London penetration depth) the mixed state for a parallel orientation of the external field is a set of vortex rows, the number of which varies in a discrete manner at certain characteristic values H[sub c1][sup (N)](d) of the magnetic field (H[sub c1][sup (N)](d) is the insertion field for the Nth vortex row). The surface impedance of the film in the field of a normally incident microwave field is calculated with allowance for the contribution of oscillating vortex rows. The results obtained in the known theoretical models (Coffey-Clem and Brandt) for the surface impedance of superconductors in the mixed state are generalized to the case of thin films, for which size effects play an important role in the structure and dynamics of the vortex lattice. © 2001 American Institute of Physics. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
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