Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1819189 | Physica C: Superconductivity and its Applications | 2010 | 7 Pages |
Abstract
Magnetoresistance of bulk textured Bi1.8Pb0.3Sr1.9Ca2Cu3Ox + Ag ceramics has been studied in the magnetic fields applied parallel and perpendicular to a–b planes of Bi2223 crystallites. Besides well known anisotropy of magnetoresistance of textured superconductors (RH || c > RH || a–b), anisotropic hysteresis of R(H) dependences was investigated. Parameters characterizing hysteretic R(H) curves differ for the cases H || c and H || a–b. This behavior is explained within the model of a granular superconductor where the total magnetic induction in the intercrystallite boundaries is superposition of the external field and the magnetic field induced by dipole magnetic moments of neighbor crystallites.
Related Topics
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Condensed Matter Physics
Authors
D.A. Balaev, S.I. Popkov, S.V. Semenov, A.A. Bykov, K.A. Shaykhutdinov, D.M. Gokhfeld, M.I. Petrov,