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Andreev Levels in Anisotropic S–N–S Junctions
Author(s) -
Herrera W.,
Niño V.
Publication year - 2000
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/1521-3951(200007)220:1<551::aid-pssb551>3.0.co;2-x
Subject(s) - quasiparticle , condensed matter physics , superconductivity , isotropy , symmetry (geometry) , anisotropy , physics , homogeneous space , andreev reflection , work (physics) , phase (matter) , quantum mechanics , mathematics , geometry
In this work we investigate the effect of different symmetries of the pair potential on the quasiparticle energy levels in SNS superconducting weak links (S: superconductor, N: metal in the normal state). The energy levels are affected by the phase difference between the two superconducting regions. In particular we study the junctions Ss s –N–S s , S s –N–S d and S d –N–S d , where the subscripts mean s‐ and d‐symmetry. We take into account the situations in which s is an isotropic, anisotropic or extended s‐symmetry.