Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Triplet superconductivity induced by screened phonon interactions in
  ferromagnetic compounds   We propose that screened pairing interactions mediated by phonons could give
rise to a spin triplet superconductivity in ferromagnetic compounds such as
UGe_2. It is pointed out that the pairing interactions include anisotropic
components such as those of p, d, f-waves in addition to dominant s-wave
component due to the momentum dependence. Since the ferromagnetic long-range
order coexists, there is a large splitting of the Fermi surfaces of up and down
spin electrons, which suppresses singlet pairing. Therefore, triplet pairing
occurs at last due to the sub-dominant anisotropic interactions, even in the
absence of magnetic contribution to the pairing interactions.

9
The categories of this paper are: nlin
6
The categories of this paper are: astro-ph
15
The categories of this paper are: nucl-ex
25
The categories of this paper are: patt-sol
12
The categories of this paper are: nucl-th
34
The categories of this paper are: chem-ph
8
The categories of this paper are: hep-ex
29
The categories of this paper are: funct-an
16
The categories of this paper are: stat
35
The categories of this paper are: mtrl-th
17
The categories of this paper are: q-fin
5
The categories of this paper are: gr-qc
33
The categories of this paper are: plasm-ph
31
The categories of this paper are: ao-sci
20
The categories of this paper are: acc-phys
27
The categories of this paper are: comp-gas