Open AccessSOLUTIONS FOR THE WAVE FUNCTIONS OF MIXED PAIRING SYMMETRY SUPERCONDUCTORS
Author(s) -
Shanshan Zhou,
Xu Ke-Xi,
Niu Jin-Hai,
Qu Hai
Publication year - 1999
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.48.342
Subject(s) - pairing , physics , condensed matter physics , superconductivity , ginzburg–landau theory , symmetry (geometry) , vortex , orthorhombic crystal system , interpretation (philosophy) , distortion (music) , landau theory , quantum mechanics , mathematical physics , phase transition , mathematics , amplifier , geometry , optoelectronics , cmos , computer science , diffraction , thermodynamics , programming language
We study the pairing symmetry in high-temperature superconductors from the point of view of group theory analysis in the framework of Ginzburg-Landau model. By considering an orthorhombic distortion from C4v point group because of the correlation of intralayers, the two apparent transitions needed in earlier work on mixed s and d state have been removed. The structure of a single vortex is presented by solving the Ginzburg-Landau wave function equations of the mixed s±idx2-y2 state. The analysis of the magnetic field dependence of the transport behaviors including the critical current and the R-T curve expansion reveals the origin of the so-called “eigen-pinning effect” and offers a good interpretation of the experimental observations.