Open AccessVORTEX MOTION AND THE HALL EFFECT IN HIGH TEMPERATURE SUPERCONDUCTORS——A TIME DEPENDANT GINZBURG LANDAU THEORY APPROACH
Author(s) -
Liang Fang-Ying,
Jiang Wen-Zhi
Publication year - 1997
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.46.2431
Subject(s) - ginzburg–landau theory , condensed matter physics , hall effect , vortex , superconductivity , sign (mathematics) , physics , relaxation (psychology) , thermal hall effect , quantum mechanics , electrical resistivity and conductivity , mechanics , mathematics , biology , mathematical analysis , neuroscience
Vortex motion in high-temperature superconductors is studied starting from a variant of the time-dependent Ginzberg-Landau(TDGL) equations,in which the order-parameter relaxation time is taken to be complex.Using Lawrence-Doniach model and considering a TDGL model modified to take into account the Hall- effect,-we have evaluated and discussed the sign change of the Hall angle and anomalous Hall effect.The results are discussed in light of rather puzzling sign change of the Hall effect which has been observed in the mixed state of the high-temperature Superconductors.