Magnetoresistance hysteresis of bulk textured Bi1.8Pb0.3Sr1.9Ca2Cu3Ox + Ag ceramics and its anisotropy |
| |
Authors: | DA Balaev SI Popkov SV Semenov AA Bykov KA Shaykhutdinov DM Gokhfeld MI Petrov |
| |
Institution: | 1. L.V. Kirensky Institute of Physics, Krasnoyarsk 660036, Russia;2. Siberian Federal University, Krasnoyarsk 660041, Russia |
| |
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. |
| |
Keywords: | |
本文献已被 ScienceDirect 等数据库收录! |