Magnetic field induced polarization effects in intrinsically granular superconductors
arXiv:cond-mat/0506160 · doi:10.1134/1.2149071
Abstract
Based on the previously suggested model of nanoscale dislocations induced Josephson junctions and their arrays, we study the magnetic field induced electric polarization effects in intrinsically granular superconductors. In addition to a new phenomenon of chemomagnetoelectricity, the model predicts also a few other interesting effects, including charge analogues of Meissner paramagnetism (at low fields) and "fishtail" anomaly (at high fields). The conditions under which these effects can be experimentally measured in non-stoichiometric high-T_c superconductors are discussed.
10 pages (REVTEX), 5 EPS figures; revised version accepted for publication in JETP
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