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Multiband superconductivity in the heavy fermion compound PrOs4Sb12

Gabriel Seyfarth·Jean-Pascal Brison·Marie-Aude Méasson·Jacques Flouquet·Koichi Izawa·Yuji Matsuda·Hitoshi Sugawara·Hideyuki Sato
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Abstract

The thermal conductivity of the heavy fermion superconductor PrOs4Sb12 was measured down to Tc/40 throughout the vortex state. At lowest temperatures and for magnetic fields H ~ 0.07Hc2, already 40% of the normal state thermal conductivity is restored. This behaviour (similar to that observed in MgB2) is a clear signature of multiband superconductivity in this compound.

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Gabriel Seyfarth, Jean-Pascal Brison, Marie-Aude Méasson, Jacques Flouquet, Koichi Izawa, Yuji Matsuda, Hitoshi Sugawara, Hideyuki Sato. 2005-06-21. Multiband superconductivity in the heavy fermion compound PrOs4Sb12. https://doi.org/10.1103/physrevlett.95.107004

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