Open AccessRESISTANCE ANOMALY IN SUPERCONDUCTING Bi2Sr2CaCu2O8 SINGLE CRYSTALS
Author(s) -
Wang Wen-Hu,
Yuqin Zhou,
P. Zheng,
Zhaojia Chen,
Nan-Lin Wang,
Yupeng Wang
Publication year - 2000
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.49.2047
Subject(s) - condensed matter physics , superconductivity , anomaly (physics) , electrical resistivity and conductivity , plane (geometry) , materials science , magnetic field , phase (matter) , reentrancy , physics , geometry , mathematics , quantum mechanics
We have measured the resistance of some Bi2Sr2CaCu2O8 superconducting single crystals along ab plane and the c axis. In some single crystals, a remarkable resistivity anomaly near the superconduct ing transition temperature is observed in the ab plane. The peak is suppressed a nd vanishes gradually with increasing applied magnetic field (>100Gs) or transpo rt current. We proposed that the resistance peak is a quasi-reentrant behavior d ue to the inhomogeneous distribution of the superconducting phase.