Anomalous features of the proximity effect in triplet superconductors

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...

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Bibliographic Details
Main Authors: Tanaka, Y., Asano, Y., Golubov, A.A., Kashiwaya, S.
Format: Article in Journal/Newspaper
Language:unknown
Published: American Physical Society 2005
Subjects:
IPY
Online Access:http://purl.utwente.nl/publications/53137
Description
Summary: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.