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On details of the thermodynamical derivation of the Ginsburg--Landau equations

A. V. Dmitriev·W. Nolting
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Abstract

We examine the procedure of thermodynamical derivation of the Ginsburg--Landau equation for current, which is given unclear and contradictory interpretations in existing textbooks. We clarify all steps of this procedure and find as a consequence a limitation on the validity range of the thermodynamic Ginsburg--Landau theory, which does not seem to be explicitely stated up to now: we conclude that the thermodynamic theory is applicable only to a superconducting specimen that is not a part of an external current-carrying loop.

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A. V. Dmitriev, W. Nolting. 2003-12-03. On details of the thermodynamical derivation of the Ginsburg--Landau equations. https://doi.org/10.1088/0953-2048%2F17%2F3%2F024

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