Heat conduction in the vortex state of NbSe2: Evidence for multiband superconductivity

Etienne Boaknin; M. A. Tanatar; Johnpierre Paglione; D. Hawthorn; F. Ronning; R. W. Hill; M. Sutherland; Louis Taillefer; Jeff Sonier; S. M. Hayden; J. W. Brill

Heat conduction in the vortex state of NbSe₂: Evidence for multiband superconductivity

Etienne Boaknin, M. A. Tanatar, Johnpierre Paglione, D. Hawthorn, F. Ronning, R. W. Hill, M. Sutherland, Louis Taillefer, Jeff Sonier, S. M. Hayden, J. W. Brill

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191 Scopus citations

Abstract

A study of heat transport in NbSe₂ down to T_c/100 throughout the vortex state, providing further evidence for multiband superconductivity (MBSC) was reported. Measurements of heat transport in the vortex state of NbSe₂ at low temperatures reveal the existence of highly delocalized quasiparticles down to fields close to H_c1. This was in striking contrast with what was expected in a s-wave superconductor where well-separated vortices should support only localized states, as was observed in V₃Si.

Original language	English
Article number	117003
Pages (from-to)	117003/1-117003/4
Journal	Physical Review Letters
Volume	90
Issue number	11
State	Published - Mar 21 2003

Bibliographical note

Funding Information:
We are grateful to H.-Y. Kee, Y. B. Kim, W. A. MacFarlane, K. Machida, A. G. Lebed, and K. B. Shamokhin for stimulating discussions. We thank Sas̆a Dukan for providing us with theoretical calculations. This work was supported by the Canadian Institute for Advanced Research and funded by NSERC of Canada.

ASJC Scopus subject areas

General Physics and Astronomy

Cite this

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title = "Heat conduction in the vortex state of NbSe2: Evidence for multiband superconductivity",

abstract = "A study of heat transport in NbSe2 down to Tc/100 throughout the vortex state, providing further evidence for multiband superconductivity (MBSC) was reported. Measurements of heat transport in the vortex state of NbSe2 at low temperatures reveal the existence of highly delocalized quasiparticles down to fields close to Hc1. This was in striking contrast with what was expected in a s-wave superconductor where well-separated vortices should support only localized states, as was observed in V3Si.",

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AU - Boaknin, Etienne

AU - Tanatar, M. A.

AU - Paglione, Johnpierre

AU - Hawthorn, D.

AU - Ronning, F.

AU - Hill, R. W.

AU - Sutherland, M.

AU - Taillefer, Louis

AU - Sonier, Jeff

AU - Hayden, S. M.

AU - Brill, J. W.

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PY - 2003/3/21

Y1 - 2003/3/21

N2 - A study of heat transport in NbSe2 down to Tc/100 throughout the vortex state, providing further evidence for multiband superconductivity (MBSC) was reported. Measurements of heat transport in the vortex state of NbSe2 at low temperatures reveal the existence of highly delocalized quasiparticles down to fields close to Hc1. This was in striking contrast with what was expected in a s-wave superconductor where well-separated vortices should support only localized states, as was observed in V3Si.

AB - A study of heat transport in NbSe2 down to Tc/100 throughout the vortex state, providing further evidence for multiband superconductivity (MBSC) was reported. Measurements of heat transport in the vortex state of NbSe2 at low temperatures reveal the existence of highly delocalized quasiparticles down to fields close to Hc1. This was in striking contrast with what was expected in a s-wave superconductor where well-separated vortices should support only localized states, as was observed in V3Si.

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Heat conduction in the vortex state of NbSe₂: Evidence for multiband superconductivity

Abstract

Bibliographical note

ASJC Scopus subject areas

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