PROXIMITY-INDUCED TIME-REVERSAL SYMMETRY-BREAKING AT JOSEPHSON-JUNCTIONS BETWEEN D-WAVE SUPERCONDUCTORS

Authors
KUBOKI K SIGRIST M
Citation
K. Kuboki et M. Sigrist, PROXIMITY-INDUCED TIME-REVERSAL SYMMETRY-BREAKING AT JOSEPHSON-JUNCTIONS BETWEEN D-WAVE SUPERCONDUCTORS, Czechoslovak journal of Physics, 46, 1996, pp. 1039-1040
Citations number
7
Categorie Soggetti
Physics
Journal title
Czechoslovak journal of Physics → ACNP
ISSN journal
00114626
Volume
46
Year of publication
1996
Supplement
2
Pages
1039 - 1040
Database
ISI
SICI code
0011-4626(1996)46:<1039:PTSAJ>2.0.ZU;2-Y
Abstract
Based on a Ginzburg Landau (GL) theory, it is shown that under certain conditions a locally time-reversal symmetry breaking state can occur at Josephson junctions between unconventional, in particular, d-wave s uperconductors. Numerical solutions of the GL equations derived from t he t - J model within a slave-boson mean-field approach show this effe ct for realistic choices of parameters. An experiment to test the rele vance of this theory to High-T-c superconductors is proposed.