Relativistic formulation of the Korringa–Kohn–Rostoker nonlocal coherent-potential approximation

Investigation of the nonlocal coherent-potential approximation

Recently the nonlocal coherent-potential approximation (NLCPA) has been introduced by Jarrell and Krishnamurthy for describing the electronic structure of substitutionally-disordered systems. The NLCPA provides systematic corrections to the widely used coherent-potential approximation (CPA) whilst preserving the full symmetry of the underlying lattice. Here an analytical and systematic numerica...

Coherent potential approximation as a voltage probe

Nuclear symmetry potential in the relativistic impulse approximation

Zeng-Hua Li, Lie-Wen Chen, 2 Che Ming Ko, Bao-An Li, and Hong-Ru Ma Institute of Theoretical Physics, Shanghai Jiao Tong University, Shanghai 200240, China Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator, Lanzhou 730000, China Cyclotron Institute and Physics Department, Texas A&M University, College Station, Texas 77843-3366, USA Department of Physics, Texas ...

Theory of electronic transport in random alloys with short-range order: Korringa-Kohn-Rostoker nonlocal coherent potential approximation

We present an ab initio formalism for the calculation of transport properties in compositionally disordered systems within the framework of the Korringa-Kohn-Rostoker nonlocal coherent potential approximation. Our formalism is based on the single-particle Kubo-Greenwood linear response and provides a natural means of incorporating the effects of short-range order upon the transport properties. ...

Systematic and causal corrections to the coherent potential approximation

The dynamical cluster approximation ~DCA! is modified to include disorder. The DCA incorporates nonlocal corrections to local approximations such as the coherent potential approximation ~CPA! by mapping the lattice problem with disorder, and in the thermodynamic limit, to a self-consistently embedded finite-sized cluster problem. It satisfies all of the characteristics of a successful cluster a...