{ "id": "cond-mat/0601635", "version": "v1", "published": "2006-01-27T15:57:25.000Z", "updated": "2006-01-27T15:57:25.000Z", "title": "Spin-orbit effects on the Larmor dispersion relation in GaAs quantum wells", "authors": [ "Francesc Malet", "Enrico Lipparini", "Manuel Barranco", "Martí Pi" ], "comment": "To be published in Physical Review B", "journal": "Phys. Rev. B73 125302 (2006)", "doi": "10.1103/PhysRevB.73.125302", "categories": [ "cond-mat.mes-hall" ], "abstract": "We have studied the relevance of spin-orbit coupling to the dispersion 00009 relation of the Larmor resonance observed in inelastic light scattering and electron-spin resonance experiments on GaAs quantum wells. We show that the spin-orbit interaction, here described by a sum of Dresselhaus and Bychkov-Rashba terms, couples Zeeman and spin-density excitations. We have evaluated its contribution to the spin splitting as a function of the magnetic field $B$, and have found that in the small $B$ limit, the spin-orbit interaction does not contribute to the spin splitting, whereas at high magnetic fields it yields a $B$ independent contribution to the spin splitting given by $2(\\lambda_R^2-\\lambda_D^2)$, with $\\lambda_{R,D}$ being the intensity of the Bychkov-Rashba and Dresselhaus spin-orbit terms.", "revisions": [ { "version": "v1", "updated": "2006-01-27T15:57:25.000Z" } ], "analyses": { "keywords": [ "gaas quantum wells", "larmor dispersion relation", "spin-orbit effects", "spin-orbit interaction", "spin splitting" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Phys. Rev. B" }, "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }