Anomalous features of the proximity effect in triplet superconductors

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Tanaka, Y. and Asano, Y. and Golubov, A.A. and Kashiwaya, S. (2005) Anomalous features of the proximity effect in triplet superconductors. Physical Review B: Condensed matter and materials physics, 72 (14). p. 140503. ISSN 1098-0121

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Abstract:Anomalous features of the proximity effect specific to diffusive normal metal (DN) / triplet superconductor junctions are studied within the quasiclassical Green¿s function formalism. The pair amplitude fN as a function of energy ¿ in DN, satisfies an anomalous relation, fN(¿)=¿fN*(¿¿) , contrary to that in singlet superconductor junctions case where fN(¿)=fN*(¿¿) . Such an unusual ¿ 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 Sr2RuO4 , which is considered to have a px+ipy -wave symmetry.
Item Type:Article
Copyright:© 2005 The American Physical Society
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Science and Technology (TNW)
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Link to this item:http://purl.utwente.nl/publications/53137
Official URL:http://dx.doi.org/10.1103/PhysRevB.72.140503
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Metis ID: 225489