Josephson and quasiparticle tunneling between anisotropically paired superconductors in the presence of externally applied voltage
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abstract
Charge transport in tunnel junctions between anisotropically paired superconductors in the presence of externally applied voltage is investigated theoretically making use of the Eilenberger equations for the quasiclassical Green functions. We found and described analitically characteristic singular points on the I-V curves which are specific for the case of anisotropic pairing. All four terms for the electric current are examined. Two of them describe ac Josephson effect and two correspond to the quasiparticle current (the last term occurs only for a time-dependent voltage). Various momentum dependences of the order parameter in the bulk of superconductors and different crystal orientations are considered.
