Flux pattern transitions in the intermediate state of a type-I superconductor driven by an ac field
نویسندگان
چکیده
منابع مشابه
Energy Minimization and Flux Domain Structure in the Intermediate State of a Type-I Superconductor
The intermediate state of a type-I superconductor involves a fine-scale mixture of normal and superconducting domains. We take the viewpoint, due to Landau, that the realizable domain patterns are (local) minima of a nonconvex variational problem. We examine the scaling law of the minimum energy and the qualitative properties of domain patterns achieving that law. Our analysis is restricted to ...
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The intermediate state of a type-I superconductor is a classical example of energy-driven pattern-formation, first studied by Landau in 1937. Three of us recently derived five different rigorous upper bounds for the ground state energy, corresponding to different microstructural patterns, but only one of them was complemented by a lower bound with the same scaling [Choksi, Kohn, Otto, J. Nonlin...
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ژورنال
عنوان ژورنال: New Journal of Physics
سال: 2013
ISSN: 1367-2630
DOI: 10.1088/1367-2630/15/3/033013