TY - JOUR
T1 - Heat Conduction in the Vortex State of [Formula presented]
T2 - Evidence for Multiband Superconductivity
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.
PY - 2003
Y1 - 2003
N2 - The thermal conductivity [Formula presented] of the layered [Formula presented]-wave superconductor [Formula presented] was measured down to [Formula presented] throughout the vortex state. With increasing field, we identify two regimes: one with localized states at fields very near [Formula presented] and one with highly delocalized quasiparticle excitations at higher fields. The two associated length scales are naturally explained as multiband superconductivity, with distinct small and large superconducting gaps on different sheets of the Fermi surface. This behavior is compared to that of the multiband superconductor [Formula presented] and the conventional superconductor [Formula presented].
AB - The thermal conductivity [Formula presented] of the layered [Formula presented]-wave superconductor [Formula presented] was measured down to [Formula presented] throughout the vortex state. With increasing field, we identify two regimes: one with localized states at fields very near [Formula presented] and one with highly delocalized quasiparticle excitations at higher fields. The two associated length scales are naturally explained as multiband superconductivity, with distinct small and large superconducting gaps on different sheets of the Fermi surface. This behavior is compared to that of the multiband superconductor [Formula presented] and the conventional superconductor [Formula presented].
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U2 - 10.1103/PhysRevLett.90.117003
DO - 10.1103/PhysRevLett.90.117003
M3 - Article
AN - SCOPUS:84863914470
SN - 0031-9007
VL - 90
SP - 4
JO - Physical Review Letters
JF - Physical Review Letters
IS - 11
ER -