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Anomalous features of the proximity effect in triplet superconductors

Superconductivity 2015-06-25 v1 Mesoscale and Nanoscale Physics

Abstract

Anomalous features of the proximity effect specific to diffusive normal metal / triplet superconductor (DN/TS) junctions are studied within the quasiclassical Green's function formalism. The pair amplitude fNf_{N} as a function of energy ϵ\epsilon in DN, satisfies an anomalous relation, % f_{N}(\epsilon)=-f^{*}_{N}(-\epsilon), contrary to that in singlet superconductor junctions case where fN(ϵ)=fN(f_{N}(\epsilon)=f^{*}_{N}(-% \epsilon). Such an unusual ϵ\epsilon dependence is responsible for a zero energy peak in the local density of states and is a source of an anomalous penetration of the applied magnetic field into DN. % Our results are relevant to Sr2_{2}RuO4_{4}, which is considered to have a px+ipyp_{x}+ip_{y}-wave symmetry.

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Cite

@article{arxiv.cond-mat/0508408,
  title  = {Anomalous features of the proximity effect in triplet superconductors},
  author = {Y. Tanaka and Y. Asano and A. A. Golubov and S. Kashiwaya},
  journal= {arXiv preprint arXiv:cond-mat/0508408},
  year   = {2015}
}

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5 pages