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The onset of superconductivity in long rectangles

Published online by Cambridge University Press:  01 July 2003

Y. ALMOG
Affiliation:
Faculty of Mathematics, Technion – Israel Institute of Technology, Haifa 32000, Israel

Abstract

The linearized Ginzburg–Landau equations in both semi-infinite strips and rectangles are transformed into equivalent one-dimensional integral equations. Then, the properties of the integral equations are utilized to prove that the onset field for a semi-infinite strip is isolated. We solve the integral equations numerically to obtain the onset field for both rectangles and semi-infinite strips. A formal asymptotic expansion of the onset field in the long rectangle limit is also obtained. Using this formal expansion, we show that the onset field converges in this limit faster than any finite exponential rate, and as a byproduct, that the onset mode in a semi-infinite strip must be asymptotically symmetric.

Type
Papers
Copyright
2003 Cambridge University Press

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