Heat transport and the nature of the order parameter in superconducting UPt{sub 3}

Journal Article · Thu Feb 29 23:00:00 EST 1996 · Physical Review, B: Condensed Matter

DOI:https://doi.org/10.1103/PhysRevB.53.5706· OSTI ID:279094

Norman, M R ^[1]; Hirschfeld, P J ^[2]

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1. Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States)
2. Department of Physics, University of Florida, Gainesville, Florida 32611 (United States)

Recent thermal conductivity data on the heavy fermion superconductor UPt{sub 3} have been interpreted as offering support for an {ital E}{sub 2{ital u}} model of the order parameter as opposed to an {ital E}{sub 1{ital g}} model. In this paper, we analyze this issue from a theoretical standpoint including the detailed effects of Fermi surface and gap anisotropy. Our conclusion is that although current data put strong constraints on the gap anisotropy, they cannot definitively distinguish between these two models. Measurements on samples of varying quality could be decisive in this regard, however. {copyright} {ital 1996 The American Physical Society.}

• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 279094
• Journal Information: Physical Review, B: Condensed Matter, Journal Name: Physical Review, B: Condensed Matter Journal Issue: 9 Vol. 53; ISSN 0163-1829; ISSN PRBMDO
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
ANISOTROPY
ENERGY GAP
FERMI LEVEL
HEAT TRANSFER
ORDER PARAMETERS
PLATINUM COMPOUNDS
SUPERCONDUCTORS
THERMAL CONDUCTIVITY
URANIUM COMPOUNDS