Abstract
A model that connects the nonlinearity of the voltage-current characteristicsV(I) in the mixed state with the statistical distribution of the pinning forces acting on moving vortices is considered. The role of the elastic properties of the vortex lattice in theV(I) behavior is discussed. A method for obtaining the statistical distribution parameters of the pinning force from experimentalV(I) data is considered, based on experimental data onV(I) dependences in Al-Ag. In alloys with controllable defects, the distribution parameters of the pinning force can be found and connected with typical parameters of the defect structure of the specimen.
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Magradze, O.V., Matyushkina, L.V. & Shukhman, V.A. Vortex motion in type II superconductors with controllable type defects. J Low Temp Phys 55, 475–494 (1984). https://doi.org/10.1007/BF00681777
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DOI: https://doi.org/10.1007/BF00681777