Assuming that the superconductivity in Sr2RuO4 is described by a planar p-wave order parameter, we consider possible topological defects in Sr2RuO4. In particular, it is shown that both of the d^-soliton and half-quantum vortex can be created in the presence of the magnetic field parallel to the a-b plane. We discuss how one can detect the d^-soliton and half-quantum vortex experimentally.
@article{arxiv.cond-mat/0005510,
title = {Half-quantum vortex and d-soliton in Sr$_2$RuO$_4$},
author = {Hae-Young Kee and Yong Baek Kim and Kazumi Maki},
journal= {arXiv preprint arXiv:cond-mat/0005510},
year = {2009}
}