Anisotropic superconductivity in PrOs4Sb12
arXiv:cond-mat/0407254
Abstract
Recently the superconducting gap functions of the skutterudite PrOs$_4$Sb$_{12}$ have been proposed [K. Maki et al, Europhys. Lett. {\bf 68}, 720 (2004)]. The superconductivity is spin-triplet and consists of at least 2 distinct phases in a magnetic field, which bears some resemblance to superfluid $ ^{3}$He. Here we present our analysis of the thermodynamic properties of these two superconducting states within the weak-coupling BCS theory. The superfluid density of the B phase is compared with recent experimental data.
5 pages, 8 figures, new discussion of stability of phases, additional comparisons of theory with data