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

Producción científica: Conference article › revisión exhaustiva

5 Citas (Scopus)

Resumen

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.

Idioma original	English
Páginas (desde-hasta)	727-728
Número de páginas	2
Publicación	Physica C: Superconductivity and its Applications
Volumen	408-410
N.º	1-4
DOI	https://doi.org/10.1016/j.physc.2004.03.055
Estado	Published - ago 2004
Evento	Proceedings of the International Conference on Materials - Rio de Janeiro, Brazil Duración: may 25 2003 → may 30 2003

Nota bibliográfica

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

Financiación

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

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

ASJC Scopus subject areas

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

Acceder al documento

10.1016/j.physc.2004.03.055

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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",

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

language = "English",

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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

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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 -