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Field History Effects in Superconducting PbSn Alloys
Author(s) -
Schafe L. M.,
Rossiter P. L.,
Rachinger W. A.
Publication year - 1976
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.2220740241
Subject(s) - condensed matter physics , magnetization , flux pinning , superconductivity , materials science , eutectic system , magnetic field , field dependence , field (mathematics) , flux (metallurgy) , pinning force , lattice (music) , alloy , physics , high temperature superconductivity , critical current , metallurgy , mathematics , quantum mechanics , acoustics , pure mathematics
Field history effects in directionally solidified eutectic PbSn alloy specimens are defined and analyzed in terms of the dependence of the flux trapped (at zero applied magnetic field) and the decreasing applied magnetic field minor magnetization paths on magnetic history. The temperature and sweep rate dependence of these effects and the direct measurement of flux profiles along minor magnetization paths may be explained in terms of the hypothesis that the effective pinning force in these specimens depends not only on the nature of the pinning features but also on the density, density distribution, and mobility of defects in the flux line lattice.