Anomalous features of the proximity effect in triplet superconductors

Y. Tanaka; Y. Asano; Alexandre Avraamovitch Golubov; S. Kashiwaya

doi:10.1103/PhysRevB.72.140503

Anomalous features of the proximity effect in triplet superconductors

Y. Tanaka, Y. Asano, Alexandre Avraamovitch Golubov, S. Kashiwaya

Faculty of Science and Technology

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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.

Original language	Undefined
Pages (from-to)	140503-
Journal	Physical review B: Condensed matter and materials physics
Volume	72
Issue number	14
DOIs	https://doi.org/10.1103/PhysRevB.72.140503
Publication status	Published - 2005

Keywords

IR-53137
METIS-225489

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10.1103/PhysRevB.72.140503

anomalous

Cite this

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AU - Tanaka, Y.

AU - Asano, Y.

AU - Golubov, Alexandre Avraamovitch

AU - Kashiwaya, S.

PY - 2005

Y1 - 2005

N2 - 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.

AB - 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.

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DO - 10.1103/PhysRevB.72.140503

M3 - Article

SN - 1098-0121

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SP - 140503-

JO - Physical review B: Condensed matter and materials physics

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