{ "id": "1609.00663", "version": "v1", "published": "2016-09-02T16:50:12.000Z", "updated": "2016-09-02T16:50:12.000Z", "title": "Semiclassical theory of anisotropic transport at LaAlO3/SrTiO3 interfaces under in-plane magnetic field", "authors": [ "N. Bovenzi", "M. Diez" ], "comment": "8 pages, 5 figures, 1 appendix", "categories": [ "cond-mat.mes-hall" ], "abstract": "Anomalous magnetotransport at the LaAlO3/SrTiO3 interface is frequently related to many-body interactions between conducting electrons and localized magnetic moments. However, the nature of magnetism at the interface is still debated. In this paper we address single-particle transport of the two-dimensional electron system described by energy bands with strongly mixed spin-orbital degrees of freedom, under the action of an in-plane magnetic field. The low-temperature anisotropic response of the system with respect to the orientation of the magnetic field is qualitatively recovered in the context of a semiclassical model where spin-orbit coupled electrons from multiple energy bands, accelerated by an electric field, are scattered by extended impurities. When the chemical potential resides near the middle of the spin-orbit gap at the (Gamma){\\Gamma}-point, the angular modulation of the (negative) magnetoresistance and of the transverse resistivity result from selective increase and decrease in the distribution of states which carry large velocity in direction parallel and orthogonal to the electric field, respectively.", "revisions": [ { "version": "v1", "updated": "2016-09-02T16:50:12.000Z" } ], "analyses": { "keywords": [ "in-plane magnetic field", "laalo3/srtio3 interface", "anisotropic transport", "semiclassical theory", "electric field" ], "note": { "typesetting": "TeX", "pages": 8, "language": "en", "license": "arXiv", "status": "editable" } } }