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Superconducting PrOs4Sb12: a thermal conductivity study

Gabriel Seyfarth, Jean-Pascal Brison, Marie-Aude Méasson, Daniel Braithwaite, Gerard Lapertot, Jacques Flouquet

cond-mat.supr-conarXiv:cond-mat/0607561

Abstract

The superconducting state of the heavy fermion PrOs4Sb12 is studied by heat transport measure- ments on a highly homogeneous single crystal exhibiting only one transition peak in the specific heat. The field and temperature dependence of the thermal conductivity confirm multiband super- conductivity and point to fully open gaps on the whole Fermi surface.

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