Chiral $CP^2$ skyrmions in three-band superconductors and layered superconducting structures
ORAL
Abstract
Recently discovered iron-based superconductors and well as multilayer structures involving $s_{\pm}$ superconductors can exhibit a spontaneous breaking of the time reversal symmetry. This raises the question of experimental manifestations of this additional broken symmetry. We demonstrate that it can result in formation of experimentally detectable nontrivial flux-carrying excitations which are topologically different conventional vortices. This new kind of solitons can provide an experimental signature of the breaking of time reversal symmetry.
*Supported by NSF CAREER Award DMR-0955902, Knut and Alice Wallenberg Foundation through the Royal Swedish Academy of Sciences and Swedish Research Council. And Swedish National Infrastructure for Computing (SNIC) at National Supercomputer Center.
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