%0 Journal Article
%T Effect of Band Structure on the Symmetry of Superconducting States
%A Kazuhiro Kuboki
%J Physics
%D 2001
%I arXiv
%R 10.1143/JPSJ.70.2698
%X Effects of the band structure on the symmetry of superconducting (SC) states are studied. For a square lattice system with a nearest-neighbor attractive interaction, SC states with various symmetries are found by changing the band structure, or, the shape of the Fermi surface. The spin-triplet ($(p_x + ip_y)$-wave) and spin-singlet ($d$- or s-wave) SC states, and states with their coexistence ($d + ip_y$, $s + ip_y$) can be stabilized within the same type of interaction. The stability of interlayer-pairing states with line nodes is also examined, and its relation to the SC state of Sr$_2$RuO$_4$ is discussed.
%U http://arxiv.org/abs/cond-mat/0102075v2