2001/02/01 by George Kastrinakis · 1 citation
Materials Science · Physics and Astronomy · #Coulomb #Electrical resistivity and conductivity #Function (biology) #Heterojunction #Organic and Molecular Conductors Research #Quantum and electron transport phenomena #Range (aeronautics) #Scattering #Surface and Thin Film Phenomena #Work (physics) #Zeeman effect #cond-mat.dis-nn #cond-mat.str-el
paper · pdf · doi:10.1016/s0921-4526(00)00775-4
published in Physica B Condensed Matter 296(1-3), 36-39 (Elsevier BV) · Updated version, 9 pages, including figures
openalex publication_date 2001/02/01 · arxiv created 2004/09/07 · arxiv updated 2015/06/24 · openalex created_date 2017/02/03 · openalex updated_date 2026/08/05
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 To=To(n,ωH), n being the density of carriers, and ωH 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 ωH are equivalent ways into/out of the metallic regime. The resistivity, calculated as a function of temperature and \omH in the metallic state, compares favorably to experiment. We comment on the nature of the transition, and calculate the specific heat of the system.