1998/07/08 by Sergei A. Sergeenkov
Physics and Astronomy · #cond-mat.supr-con
published as J. Phys. I France 7 (1997) 1175-1179 · REVTEX (epsf style), 2 EPS figures. For related work see cond-matt/9807098
arxiv created 1998/07/08 · arxiv updated 2009/11/30
A magnetic field induced electric polarization and the corresponding change of an effective junction capacitance are considered within a 3D model of disordered Josephson junction arrays. At some threshold field (near the Josephson network critical field), the effective junction charge and the related capacitance are shown to reach a maximum and to change a sign, respectively. A possibility to observe the predicted effects in artificially prepared arrays of superconducting grains is discussed.