{ "id": "cond-mat/0109239", "version": "v3", "published": "2001-09-13T14:10:01.000Z", "updated": "2004-09-07T13:15:26.000Z", "title": "Metal-insulator transition in 2D: the role of interactions and disorder", "authors": [ "George Kastrinakis" ], "comment": "Updated version, 9 pages, including figures", "journal": "Physica B 387, 109 (2007)", "categories": [ "cond-mat.dis-nn", "cond-mat.str-el" ], "abstract": "We present a model for the metal-insulator transition in 2D, observed in the recent years. Our starting point consists of two ingredients only, which are ubiquitous in the experiments: Coulomb interactions and weak disorder spin-orbit scattering (coming from the interfaces of the heterostructures in question). In a diagramatic approach, we predict the existence of a characteristic temperature $T_o=T_o(n,\\omega_H)$, $n$ being the density of carriers, and $\\omega_H$ the Zeeman energy, below which these systems become metallic. This is in very good agreement with experiments, and corroborates the fact that varying $n$ and $\\omega_H$ are equivalent ways into/out of the metallic regime. The resistivity, calculated as a function of temperature and $\\om_H$ in the metallic state, compares favorably to experiment. We comment on the nature of the transition, and calculate the specific heat of the system.", "revisions": [ { "version": "v3", "updated": "2004-09-07T13:15:26.000Z" } ], "analyses": { "keywords": [ "metal-insulator transition", "experiment", "metallic state", "metallic regime", "equivalent ways into/out" ], "tags": [ "journal article" ], "note": { "typesetting": "TeX", "pages": 9, "language": "en", "license": "arXiv", "status": "editable" } } }