Gap symmetry of superconductivity in UPd2Al3

H. Won; D. Parker; K. Maki; T. Watanabe; K. Izawa; Y. Matsuda

doi:10.1103/PhysRevB.70.140509

Gap symmetry of superconductivity in UPd₂Al₃

H. Won, D. Parker, K. Maki, T. Watanabe, K. Izawa, Y. Matsuda

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14 Scopus citations

Abstract

The angle-dependent thermal conductivity of the heavy-fermion superconductor UPd₂Al₃ in the vortex state was recently measured by Watanabe et al. Here we analyze this data from two perspectives: universal heat conduction and the angle dependence. We conclude that the superconducting gap function Δ(k) in UPd₂Al₃ has horizontal nodes and is given by Δ(k)=Δ cos(2χ), with χ=ck_z.

Original language	English
Article number	140509
Pages (from-to)	140509-1-140509-4
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	70
Issue number	14
DOIs	https://doi.org/10.1103/PhysRevB.70.140509
State	Published - Oct 2004
Externally published	Yes

Funding

We thank Balazs Dora, Stephan Haas, Hae-Young Kee, Peter Thalmeier, and Attila Virosztek for helpful collaborations on related subjects. H.W. acknowledges support from Korean Science and Engineering Foundation (KOSEF) through Grant No. R05-2004-000-1084.

Funders	Funder number
Korean Science and Engineering Foundation
Korea Science and Engineering Foundation

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10.1103/PhysRevB.70.140509

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AU - Izawa, K.

AU - Matsuda, Y.

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Gap symmetry of superconductivity in UPd₂Al₃

Abstract

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