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Vortex breaking and cutting in type II superconductors.

Palau, A and Dinner, R and Durrell, JH and Blamire, MG (2008) Vortex breaking and cutting in type II superconductors. Phys Rev Lett, 101. 097002-. ISSN 0031-9007

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Abstract

In technological superconductors, the Lorentz force on the flux vortices is opposed by inhomogeneous pinning and so the critical current may be controlled by a combination of vortex entanglement, cutting, and cross-joining. To understand the roles of these processes we report measurements of structures in which a weak pinning layer is sandwiched between two strongly pinning leads. Quantitative modeling of the results demonstrates that in such systems the critical current is limited by the deformation of individual vortices and not by subsequent cross-joining processes.

Item Type: Article
Subjects: UNSPECIFIED
Divisions: Div C > Materials Engineering
Depositing User: Cron Job
Date Deposited: 07 Mar 2014 11:22
Last Modified: 16 Apr 2014 19:01
DOI:

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