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.
Original language | English |
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Pages (from-to) | 727-728 |
Number of pages | 2 |
Journal | Physica C: Superconductivity and its Applications |
Volume | 408-410 |
Issue number | 1-4 |
DOIs | |
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.
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