Rotating superconductors: Ginzburg-Landau equations |
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Authors: | H Capellmann |
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Institution: | (1) Institut für Theoretische Physik C, Technische Hochschule Aachen, 52056 Aachen, Germany, DE |
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Abstract: | Superconductors put into rotation develope a spontaneous internal magnetic field (the “London field”). In this paper Ginzburg
Landau equations for order parameter, field, and current distributions for superconductors in rotation are derived. Two simple
examples are discussed: the massive cylinder and the “Little and Parks geometry”: a thin film of superconducting material
deposited on a cylinder of normal material. A dependence of T
c on rotational frequency is predicted. The magnitude of the effect is estimated and should be observable.
Received 28 May 2001 |
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Keywords: | PACS 74 20 De Phenomenological theories (two-fluid Ginzburg-Landau etc ) – 74 25 Bt Thermodynamic properties – 74 25 Ha Magnetic properties |
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