Elementary pinning force of normal precipitates in a superconductor
- 1 January 1983
- journal article
- conference paper
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 54 (1) , 281-288
- https://doi.org/10.1063/1.331698
Abstract
The elementary pinning force of a small normal precipitate is calculated by using the phenomenological Ginzburg–Landau equations. The resultant elementary pinning force is almost the same as or slightly larger than that of a void of the same size. This contradicts the theoretical result of Kramer and Freyhardt that the elementary pinning force of the normal precipitate smaller than the coherence length is significantly smaller than that of the void due to the proximity effect. It is pointed out that the normal precipitate was incorrectly regarded as an inherent weak superconductor in the theory of Kramer and Freyhardt. The present theoretical result is compared with the result of a previous experiment and satisfactory agreement is obtained.This publication has 9 references indexed in Scilit:
- Proximity Effect of a Thin Normal Metal Layer in a SuperconductorJournal of the Physics Society Japan, 1982
- The proximity effect in flux pinningJournal of Applied Physics, 1980
- The peak effect, summation problem, and magnetic history in a superconducting Nb-38 at.% Hf alloyPhilosophical Magazine Part B, 1979
- Fluxoid pinning by vanadium carbide precipitates in superconducting vanadiumJournal of Low Temperature Physics, 1978
- Influence of voids on the superconducting properties of vanadiumJournal of Nuclear Materials, 1978
- Fundamental fluxoid-defect interactions in irradiated superconductorsJournal of Nuclear Materials, 1978
- Flux vortices and transport currents in type II superconductorsAdvances in Physics, 1972
- Tunneling Model of the Superconducting Proximity EffectPhysical Review B, 1968
- Ginzburg-Landau Equations and the Josephson EffectPhysical Review B, 1965