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Induced current state in a hollow superconducting cylinder

Journal Article · · Sov. J. Low Temp. Phys. (Engl. Transl.); (United States)
OSTI ID:5950261
The problem of the destruction of the state with induced current (or, which is the same, with trapped magnetic flux) in a thin-walled superconducting cylinder is treated within the framework of the Ginzburg--Landau theory. Two problems are solved, namely, for a uniform specimen and a specimen with weak coupling along the cylinder generatrix. It is shown that in the case of the nonuniform cylinder the effective value of the trapped flux may be smaller than a flux quantum (n/sub asterisk/<1). Therefore, it turns out that the induced current state in a cylinder with weak coupling persists to higher temperatures than the n = 1 state in a uniform cylinder. This indicates that the nonuniform state may be an important factor in the destruction of superconductivity of cylindrical specimens with trapped magnetic flux.
Research Organization:
P. N. Lebedev Physic Institute, Academy of Sciences of the USSR, Moscow
OSTI ID:
5950261
Journal Information:
Sov. J. Low Temp. Phys. (Engl. Transl.); (United States), Journal Name: Sov. J. Low Temp. Phys. (Engl. Transl.); (United States) Vol. 7:1; ISSN SJLPD
Country of Publication:
United States
Language:
English

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