|
|||||
|
|
Magnetic relaxation and critical current in Bi2Sr2CaCu2O8+x single crystals |
|
| Authors: | G Balestrino D Fiorani P Paroli J Tejada and A M Testa |
| Affiliation: | (1) Dipartimento di Fisica dell'Universitá di Salerno, I-84100 Salerno, Italy;(2) I.T.S.E., C.N.R., Area della Ricerca di Roma, C.P. 10, I-00016 Roma, Italy;(3) Dipartimento di Ingegneria Meccanica, II Università di Roma, Via O. Raimondo, I-00173 Roma, Italy;(4) Dept. Fisica Fonamental, Facultat Fisica, Universitat de Barcelona Diagonal 647, 08028 Barcelona, Spain |
| Abstract: | The anisotropy of critical current densityJ c in Bi2Ba2CaCu2O8+x single crystals has been investigated as a function both of the temperature and of the applied magnetic field. An anisotropic behavior ofJ c has been found. The decay of the remanent magnetization has been studied for fields applied both parallel and perpendicular to thec axis. A logarithmic behavior was found. A pinning energyU 0 of about 0.01 eV, independent of the direction of the applied field, was obtained. |
| Keywords: | Critical current magnetic relaxation anisotropy Bi2Sr2CaCu2O8+x |
| 本文献已被 SpringerLink 等数据库收录！ | |