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The Magnetic Field of Pure Superconductors with Non‐Isolated Flux Lines at Arbitrary Temperature
Author(s) -
Brandt E. H.
Publication year - 1974
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2220640207
Subject(s) - condensed matter physics , cusp (singularity) , magnetization , superconductivity , vortex , type ii superconductor , magnetic field , flux (metallurgy) , physics , field (mathematics) , sign (mathematics) , flux pinning , magnetic flux , high temperature superconductivity , materials science , quantum mechanics , mathematics , mechanics , geometry , mathematical analysis , pure mathematics , metallurgy
The magnetic field distribution of pure type‐II superconductors with small magnetization is derived from the non‐local version of Gorkov's theory. At zero temperature Delrieu's result is reproduced: at the vortex centre the field shows a cusp and exceeds the external field. The form factors have alternating sign and decrease only as K −3 . At larger magnetization all form factors become positive. At T = 0, even close to Hc 2 , a gap function is expected deviating considerably from the H c2 ‐solution. This means a pronounced narrowing of the vortex core at low temperatures.