Physics – Condensed Matter – Superconductivity
Scientific paper
2004-01-27
Physics
Condensed Matter
Superconductivity
Scientific paper
10.1103/PhysRevB.70.134522
We consider some properties of odd frequency triplet superconducting condensates. In order to describe fluctuations we construct a supermatrix sigma-model for the superconductor/ferromagnet or superconductor/normal-metal structures. We show that an odd frequency triplet superconductor, when in isolation or coupled to a normal metal, generally displays behaviour comparable to a superconductor with the usual singlet pairings. However, for spin dependent systems such as the superconductor/ferromagnet the two types of superconductor have quite different behaviour. We discuss this difference by considering transformations under which the sigma-model is invariant. Finally, we calculate the low energy density of states in a ferromagnet coupled to a singlet superconductor. If odd frequency triplet components are induced in the ferromagnet the density of states will have a micro-gap similar to the micro-gap found in normal metals coupled to a superconductor.
Bunder J. E.
Efetov Konstantin B.
No associations
LandOfFree
Non-linear sigma-model for odd triplet superconductivity in superconductor/ferromagnet structures 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 Non-linear sigma-model for odd triplet superconductivity in superconductor/ferromagnet structures, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Non-linear sigma-model for odd triplet superconductivity in superconductor/ferromagnet structures will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-646796