Multi-band superconductivity in NbSe2 from heat transport

E. Boaknin; M. A. Tanatar; J. Paglione; D. G. Hawthorn; R. W. Hill; F. Ronning; M. Sutherland; L. Taillefer; J. Sonier; S. M. Hayden; J. W. Brill

doi:10.1016/j.physc.2004.03.055

Multi-band superconductivity in NbSe₂ from heat transport

E. Boaknin
, M. A. Tanatar
, J. Paglione
, D. G. Hawthorn
, R. W. Hill
, F. Ronning
, M. Sutherland
, L. Taillefer
, J. Sonier
, S. M. Hayden
, J. W. Brill

Research output: Contribution to journal › Conference article › peer-review

5 Scopus citations

Abstract

The thermal conductivity of the layered s-wave superconductor NbSe ₂ was measured down to T_c/100 throughout the vortex state. With increasing field, we identify two regimes: one with localized states at fields very near H_c1 and one with highly delocalized quasiparticle excitations at higher fields. The two associated length scales are most naturally explained as multi-band superconductivity, with distinct small and large superconducting gaps on different sheets of the Fermi surface.

Original language	English
Pages (from-to)	727-728
Number of pages	2
Journal	Physica C: Superconductivity and its Applications
Volume	408-410
Issue number	1-4
DOIs	https://doi.org/10.1016/j.physc.2004.03.055
State	Published - Aug 2004
Event	Proceedings of the International Conference on Materials - Rio de Janeiro, Brazil Duration: May 25 2003 → May 30 2003

Bibliographical note

Funding Information:
This work was supported by the Canadian Institute for Advanced Research and funded by NSERC.

Funding

This work was supported by the Canadian Institute for Advanced Research and funded by NSERC.

Funders
Canadian Institute for Advanced Research
Natural Sciences and Engineering Research Council of Canada

Keywords

Multi-band superconductivity
NbSe
Thermal conductivity

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

Access to Document

10.1016/j.physc.2004.03.055

Cite this

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title = "Multi-band superconductivity in NbSe2 from heat transport",

abstract = "The thermal conductivity of the layered s-wave superconductor NbSe 2 was measured down to Tc/100 throughout the vortex state. With increasing field, we identify two regimes: one with localized states at fields very near Hc1 and one with highly delocalized quasiparticle excitations at higher fields. The two associated length scales are most naturally explained as multi-band superconductivity, with distinct small and large superconducting gaps on different sheets of the Fermi surface.",

keywords = "Multi-band superconductivity, NbSe, Thermal conductivity",

author = "E. Boaknin and Tanatar, \{M. A.\} and J. Paglione and Hawthorn, \{D. G.\} and Hill, \{R. W.\} and F. Ronning and M. Sutherland and L. Taillefer and J. Sonier and Hayden, \{S. M.\} and Brill, \{J. W.\}",

note = "Funding Information: This work was supported by the Canadian Institute for Advanced Research and funded by NSERC.; Proceedings of the International Conference on Materials ; Conference date: 25-05-2003 Through 30-05-2003",

year = "2004",

month = aug,

doi = "10.1016/j.physc.2004.03.055",

language = "English",

volume = "408-410",

pages = "727--728",

number = "1-4",

}

TY - JOUR

T1 - Multi-band superconductivity in NbSe2 from heat transport

AU - Boaknin, E.

AU - Tanatar, M. A.

AU - Paglione, J.

AU - Hawthorn, D. G.

AU - Hill, R. W.

AU - Ronning, F.

AU - Sutherland, M.

AU - Taillefer, L.

AU - Sonier, J.

AU - Hayden, S. M.

AU - Brill, J. W.

N1 - Funding Information: This work was supported by the Canadian Institute for Advanced Research and funded by NSERC.

PY - 2004/8

Y1 - 2004/8

N2 - The thermal conductivity of the layered s-wave superconductor NbSe 2 was measured down to Tc/100 throughout the vortex state. With increasing field, we identify two regimes: one with localized states at fields very near Hc1 and one with highly delocalized quasiparticle excitations at higher fields. The two associated length scales are most naturally explained as multi-band superconductivity, with distinct small and large superconducting gaps on different sheets of the Fermi surface.

AB - The thermal conductivity of the layered s-wave superconductor NbSe 2 was measured down to Tc/100 throughout the vortex state. With increasing field, we identify two regimes: one with localized states at fields very near Hc1 and one with highly delocalized quasiparticle excitations at higher fields. The two associated length scales are most naturally explained as multi-band superconductivity, with distinct small and large superconducting gaps on different sheets of the Fermi surface.

KW - Multi-band superconductivity

KW - NbSe

KW - Thermal conductivity

UR - https://www.scopus.com/pages/publications/4344588743

UR - https://www.scopus.com/pages/publications/4344588743#tab=citedBy

U2 - 10.1016/j.physc.2004.03.055

DO - 10.1016/j.physc.2004.03.055

M3 - Conference article

AN - SCOPUS:4344588743

SN - 0921-4534

VL - 408-410

SP - 727

EP - 728

JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

IS - 1-4

T2 - Proceedings of the International Conference on Materials

Y2 - 25 May 2003 through 30 May 2003

ER -