Meissner response of anisotropic superconductors
V. G. Kogan
DOI 10.1103/PhysRevB.68.104511 · Physical Review B
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Abstract
The response field of a half-space anisotropic superconductor is evaluated for an arbitrary weak external field source. Example sources of a point magnetic moment and a circular current are considered in detail. For the penetration depth λ≪L with L being any other relevant distance (the source size or the distance between the source and superconductor), the major contribution to the response is the λ-independent field of the source image. It is shown that the absolute value of λ cannot be extracted from the response field with a better accuracy than that for the source position. Similar problems are considered for thin films.
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