Flux flow resistivity by surface resistance measurements
- 1 June 1970
- journal article
- Published by IOP Publishing in Journal of Physics C: Solid State Physics
- Vol. 3 (6) , 1399-1409
- https://doi.org/10.1088/0022-3719/3/6/022
Abstract
The surface resistance of three lead-indium alloys (50%, 10%, 3% indium) and two niobium-tantalum allows (10%, 0.8% tantalum) was measured by a resonance method at 2.4 GHz as a function of applied field and temperature in the perpendicular arrangement. Comparison with results obtained earlier at 20-25 MHz shows that the surface resistance in the superconducting mixed state, at given field and temperature, divided by the normal state surface resistance, is independent of frequency. The results are interpreted macroscopically in terms of flux flow resistivity. Results are also presented for the alloys with low Ginzburg-Landau kappa parameter and for temperatures not far below the critical temperature.Keywords
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