Controlled Pinning in Superconducting Foils by Surface Microgrooves
- 10 August 1970
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 25 (6) , 356-359
- https://doi.org/10.1103/physrevlett.25.356
Abstract
To test the idea that surface irregularities can pin fluxons, regular parallel microgrooves were created in the surfaces of homogeneous cast In-2% Bi foils by pressing diffraction gratings into the foils. The pinning force thus induced was zero for flux flow parallel to the grooves and a maximum for perpendicular flux flow; a very simple dependence on the spacing and strength of the pinners was found.Keywords
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