{ "id": "1007.3592", "version": "v1", "published": "2010-07-21T09:26:24.000Z", "updated": "2010-07-21T09:26:24.000Z", "title": "Polarization bistability and resultant spin rings in semiconductor microcavities", "authors": [ "D. Sarkar", "S. S. Gavrilov", "M. Sich", "J. H. Quilter", "R. A. Bradley", "N. A. Gippius", "K. Guda", "V. D. Kulakovskii", "M. S. Skolnick", "D. N. Krizhanovskii" ], "comment": "5 pages, 3 figures", "categories": [ "cond-mat.mes-hall" ], "abstract": "The transmission of a pump laser resonant with the lower polariton branch of a semiconductor microcavity is shown to be highly dependent on the degree of circular polarization of the pump. Spin dependent anisotropy of polariton-polariton interactions allows the internal polarization to be controlled by varying the pump power. The formation of spatial patterns, spin rings with high degree of circular polarization, arising as a result of polarization bistability, is observed. A phenomenological model based on spin dependent Gross-Pitaevskii equations provides a good description of the experimental results. Inclusion of interactions with the incoherent exciton reservoir, which provides spin-independent blueshifts of the polariton modes, is found to be essential.", "revisions": [ { "version": "v1", "updated": "2010-07-21T09:26:24.000Z" } ], "analyses": { "subjects": [ "71.36.+c", "42.55.Sa", "42.65.Pc" ], "keywords": [ "resultant spin rings", "polarization bistability", "semiconductor microcavity", "circular polarization", "spin dependent gross-pitaevskii equations" ], "tags": [ "journal article" ], "publication": { "doi": "10.1103/PhysRevLett.105.216402", "journal": "Physical Review Letters", "year": 2010, "month": "Nov", "volume": 105, "number": 21, "pages": 216402 }, "note": { "typesetting": "TeX", "pages": 5, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2010PhRvL.105u6402S" } } }