A model of flux pinning by grain boundaries in type-II superconductors
- 1 October 1976
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 29 (7), 443-444
- https://doi.org/10.1063/1.89113
Abstract
A relationship between pinning force Fp and grain size D in type‐II superconductors derived on the basis of interaction of fluxoids with dislocations forming the grain‐boundary walls is reported. While confirming approximately the experimentally observed Fp∝1/D relationship, the theory predicts a peak in Fp at a0/D≃0.2, where a0 is the lattice constant of the flux line lattice.Keywords
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