Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Anisotropic superconductivity in PrOs4Sb12   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.

37
The categories of this paper are: supr-con
8
The categories of this paper are: hep-ex
24
The categories of this paper are: dg-ga
22
The categories of this paper are: chao-dyn
1
The categories of this paper are: cs
6
The categories of this paper are: astro-ph
3
The categories of this paper are: physics
2
The categories of this paper are: math
14
The categories of this paper are: math-ph
18
The categories of this paper are: econ
33
The categories of this paper are: plasm-ph
25
The categories of this paper are: patt-sol
31
The categories of this paper are: ao-sci
36
The categories of this paper are: cmp-lg
15
The categories of this paper are: nucl-ex
29
The categories of this paper are: funct-an