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  Anisotropic s-wave superconductivity in borocarbides LuNi2B2C and YNi2B2C

Maki, K., Thalmeier, P., & Won, H. (2002). Anisotropic s-wave superconductivity in borocarbides LuNi2B2C and YNi2B2C. Physical Review B, 65(14): 140502, pp. 140502-140502. doi:10.1103/PhysRevB.65.140502.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0015-315F-3 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0018-0186-3
Genre: Journal Article

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 Creators:
Maki, K.1, Author              
Thalmeier, P.2, Author              
Won, H., Author
Affiliations:
1Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863404              
2Peter Thalmeier, Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863457              

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 Abstract: The symmetry of superconductivity in borocarbides LuNi2B2C and YNi2B2C is an outstanding issue. Here an anisotropic s-wave order parameter (or s+g model) is proposed for LuNi2B2C and YNi2B2C. In spite of a substantial s-wave component, the present superconducting order parameter Delta(k) has nodes and gives rise to the rootH dependent specific heat in the vortex state (the Volovik effect). This model predicts the fourfold symmetry both in the angular dependent thermal conductivity and in the excess Dingle temperature in the vortex state, which should be readily accessible experimentally.

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Language(s): eng - English
 Dates: 2002-04-01
 Publication Status: Published in print
 Pages: -
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 Table of Contents: -
 Rev. Method: Peer
 Identifiers: eDoc: 17805
ISI: 000174980300017
DOI: 10.1103/PhysRevB.65.140502
 Degree: -

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Title: Physical Review B
  Alternative Title : Phys. Rev. B
Source Genre: Journal
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Pages: - Volume / Issue: 65 (14) Sequence Number: 140502 Start / End Page: 140502 - 140502 Identifier: ISSN: 0163-1829