Theory of charge transport in high-TC superconductor junctions from the view point of the mid gap Andreev resonant state

Details Theory of charge transport in high-TC superconductor junctions from the view point of the mid gap Andreev resonant state Theory of charge transport in high-TC superconductor junctions from the view point of the mid gap Andreev resonant state

Mar 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006phyc..435....1t&link_type=abstract

Physica C, Volume 435, Issue 1-2, p. 1-7.

Other

Proximity Effects, Andreev Effect, Sn And Sns Junctions, Tunneling Phenomena, Point Contacts, Weak Links, Josephson Effects

Scientific paper

In this paper, we report important features about high-TC superconductor junctions. It has been clarified that the most important property of high-TC junctions is the sign change of the pair potential on the Fermi surface reflecting on the d-wave pair potential. This unique feature induces the formation of the mid gap Andreev resonant state (MARS) at the interface of the high-TC superconductor junctions. The MARS influences various physical quantities, e.g., quasiparticle current, Josephson effect and proximity effect. In d-wave superconductor, the MARS competes with the proximity effect. On the other hand, for triplet superconductor junctions, it can coexist. We can expect giant proximity effect enhanced by the MARS.

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