title: Transmutation of skyrmions to half-solitons driven by the nonlinear optical spin Hall effect.
abstract: We show that the spin domains, generated in the linear optical spin Hall effect by the analog of spin-orbit interaction for exciton polaritons, are associated with the formation of a Skyrmion lattice. In the nonlinear regime, the spin anisotropy of the polariton-polariton interactions results in a spatial compression of the domains and in a transmutation of the Skyrmions into oblique half-solitons. This phase transition is associated with both the focusing of the spin currents and the emergence of a strongly anisotropic emission pattern.
authors: Institut Pascal, PHOTON-N2, Clermont Université, Blaise Pascal University, CNRS, 24 avenue des Landais, 63177 Aubière Cedex, France.
authors: H
authors: H
authors: Flayac
authors: D D
authors: DD
authors: Solnyshkov
authors: I A
authors: IA
authors: Shelykh
authors: G
authors: G
authors: Malpuech
mesh_terms: D008962:Models, Theoretical; D017711:Nonlinear Dynamics; D011789:Quantum Theory; D012542:Scattering, Radiation