Typical-medium multiple-scattering theory for disordered systems with Anderson localization

Article

关键词: COHERENT-POTENTIAL APPROXIMATION;    MEAN-FIELD THEORY;    RANDOM SUBSTITUTIONAL ALLOYS;    CORRELATED ELECTRON-SYSTEMS;    RANDOM METALLIC ALLOYS;    INFINITE DIMENSIONS;    HUBBARD-MODEL;    CU-NI;    STATE PROPERTIES;    CLUSTER THEORIES;   

DOI  :  10.1103/PhysRevB.95.134204

来源: SCIE

【 摘 要 】

The typical medium dynamical cluster approximation (TMDCA) is reformulated in the language of multiple scattering theory to make possible first-principles calculations of the electronic structure of substitutionally disordered alloys including the effect of Anderson localization. The TMDCA allows for a systematic inclusion of nonlocal multisite correlations and at the same time provides an order parameter, the typical density of states, for the Anderson localization transition. The relation between the dynamical cluster approximation and the multiple scattering theory is analyzed, and is illustrated for a tight-binding model.

【 授权许可】

Free