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Flux pinning due to stress concentration introduced by an ellipsoidal precipitate in a stressed $YBa_2Cu_30_7$ film

Selvan, Arul K and Biswas, SK (1994) Flux pinning due to stress concentration introduced by an ellipsoidal precipitate in a stressed $YBa_2Cu_30_7$ film. In: Physica C, 232 (3-4). pp. 233-240.

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Abstract

The pinning potential of an ellipsoidal inclusion in an $YBa_2Cu_30_7$ (YBCO) film, deposited on a substrate, in the presence of film stress, has been estimated. The stress fields at the tip of the inclusion are computed with the assumption that the YBCO film is elastically orthotropic. The volumetric interaction energy of a flux line situated at the tip of the ellipsoid is calculated numerically for various shapes of the ellipsoid using the change in the anisotropic compliance tensor $\Delta S_{ij}$ between the superconducting and the normal states for a c-oriented YBCO film.

Item Type: Journal Article
Additional Information: The copyright of this article belongs to Elsevier.
Department/Centre: Division of Mechanical Sciences > Mechanical Engineering
Date Deposited: 16 Oct 2006
Last Modified: 19 Sep 2010 04:30
URI: http://eprints.iisc.ernet.in/id/eprint/8234

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