Disorder- and correlation-driven metal-insulator transitions

摘要

Metal-insulator transitions driven by disorder (Delta) and/or by electron correlations (0 are investigated within the Anderson-Hubbard model with local binary-alloy disorder using a simple but consistent mean-field approach. The Delta-U phase diagram is derived and discussed for T = 0 and finite temperatures. (c) 2005 Elsevier B.V. All rights reserved.