Physics – Condensed Matter – Superconductivity
Scientific paper
2004-12-14
Physics
Condensed Matter
Superconductivity
16pages, 14 figures
Scientific paper
Superconducting proximity effect in normal metal (N) / $d_{x^2-y^2}$-wave superconductor (D) junctions in the presence of attractive interelectron potentials which can induce subdominant s-wave pair potentials both in N and D sides, is studied based on the quasiclassical Green's function theory, where spatial dependencies of the pair potentials are determined self-consistently. In the N/D junctions with orientational angle with $\theta = 0$, the s-wave component is induced in the N side by the proximity effect only for high transparent case, where the induced s-wave components in both the N and D sides do not break the time reversal symmetry (TRS). For fully transparent case, the resulting local density of states has a very sharp zero-energy peak (ZEP), the origin of which is the sign change of the pair potentials felt by the quasiparticles between the s-wave component in the N side and $d_{x^2-y^2}$-wave dominant component in the D side through Andreev reflections. On the other hands, for $\theta = \pi/4$, the subdominant s-wave component which breaks the TRS appears near the interface. Besides, for lower transparent cases, the subdominant imaginary s-wave component is also induced near the interface in the N side. The proximity induced s-wave component in the N side does not enhance the magnitude of the s-wave component of the pair potential which break the TRS in the D side. The resulting LDOS at the interface has the ZEP or its splitting depending on the transparency of the junction.
Kashiwaya Satoshi
Tanaka Yasuhiro
Tanuma Yasunari
No associations
LandOfFree
Theory of proximity effect in normal metal/$d_{x^2-y^2}$-wave superconductor interface in the presence of subdominant components of the pair potentials does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Theory of proximity effect in normal metal/$d_{x^2-y^2}$-wave superconductor interface in the presence of subdominant components of the pair potentials, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Theory of proximity effect in normal metal/$d_{x^2-y^2}$-wave superconductor interface in the presence of subdominant components of the pair potentials will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-226539