Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Spin-triplet f-wave pairing due to three-site cyclic-exchange
  ferromagnetic interactions   Ferromagnetiam and superconductivity in a two-dimensional triangular-lattice
Hubbard model are studied using the density-matrix renormalization group
method. We propose a mechanism of the {\it f}-wave spin-triplet pairing derived
from the three-site cyclic-exchange ferromagnetic interactions. We point out
that a triangular network of hopping integrals, which is required for the
three-site cyclic hopping processes, is contained in the (possibly)
spin-triplet superconducting systems, such as Bechgaard salts (TMTSF)$_2$X,
cobalt oxide Na$_{0.35}$CoO$_2$$\cdot$1.3H$_2$O, and layered perovskite
Sr$_2$RuO$_4$.

23
The categories of this paper are: solv-int
22
The categories of this paper are: chao-dyn
19
The categories of this paper are: eess
6
The categories of this paper are: astro-ph
8
The categories of this paper are: hep-ex
37
The categories of this paper are: supr-con
7
The categories of this paper are: hep-th
36
The categories of this paper are: cmp-lg
33
The categories of this paper are: plasm-ph
20
The categories of this paper are: acc-phys
12
The categories of this paper are: nucl-th
15
The categories of this paper are: nucl-ex
24
The categories of this paper are: dg-ga
0
The categories of this paper are: hep-ph
34
The categories of this paper are: chem-ph
14
The categories of this paper are: math-ph