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Surface flux pinning in superconducting amorphous (Mo0.6Ru0.4)B18

Clemens, B. M. and Johnson, W. L. (1982) Surface flux pinning in superconducting amorphous (Mo0.6Ru0.4)B18. Journal of Applied Physics, 53 (11). pp. 7612-7614. ISSN 0021-8979. doi:10.1063/1.330135.

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Superconducting critical current density was measured as a function of a perpendicular applied magnetic field in glassy (Mo0.6Ru0.4)82B18. The pinning force density was observed to depend linearly on 1/w, where w is the sample width measured perpendicular to both the current and field. This dependence is attributed to pinning by the sample edges. The bulk pinning contribution can be separated from the edge pinning contribution by extrapolation of the Fp vs 1/w curve. The edge contribution of the flux pinning was nearly eliminated by electrolytically polishing the sample. The contribution of the flux pinning profile due to edge pinning is analyzed in terms of the dynamic pinning model modified for edge pinning.

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Additional Information:Copyright © 1982 American Institute of Physics. Received 19 April 1982; accepted 20 July 1982. This research was supported by the DOE under Project Agreement No. DE-AT03-81ER10870, Contract No. DE-AM03-76SF00767.
Subject Keywords:superconductivity, magnetic flux, amorphous state, molybdenum borides, ruthenium borides, experimental data, critical current, current density, electric currents, orientation, electrolysis, polishing, spatial distribution, mathematical models
Issue or Number:11
Record Number:CaltechAUTHORS:CLEjap82
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:9890
Deposited By: Archive Administrator
Deposited On:26 Mar 2008
Last Modified:08 Nov 2021 21:03

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