Quantum cluster theories

T Maier, M Jarrell, T Pruschke, MH Hettler - Reviews of Modern Physics, 2005 - APS
This article reviews quantum cluster theories, a set of approximations for infinite lattice
models which treat correlations within the cluster explicitly, and correlations at longer length …

Cellular dynamical mean field approach to strongly correlated systems

G Kotliar, SY Savrasov, G Pálsson, G Biroli - Physical review letters, 2001 - APS
We propose a cellular version of dynamical mean field theory which gives a natural
generalization of its original single-site construction and is formulated in different sets of …

Electronic structure and magnetism of Ga, and Al) alloys by the KKR-CPA method

A Bansil, S Kaprzyk, PE Mijnarends, J Toboła - Physical Review B, 1999 - APS
We present first-principles charge-and spin-self-consistent electronic structure computations
on the Heusler-type disordered alloys Fe 3− x V x X for three different metalloids X=(Si, Ga …

Generalized perturbation theory in disordered transitional alloys: Applications to the calculation of ordering energies

F Ducastelle, F Gautier - Journal of Physics F: Metal Physics, 1976 - iopscience.iop.org
Ordering effects in disordered alloys are studied by means of a generalized perturbation
method. The unperturbed state is taken to be the completely disordered state treated in the …

[图书][B] Principles of the theory of lattice dynamics

H Böttger - 1983 - books.google.com
Much progress has been achieved during the last two decades in the theoretical
understanding of dynamical properties of solids, especially of disordered and anharmonic …

Green's function and a generalized Lloyd formula for the density of states in disordered muffin-tin alloys

S Kaprzyk, A Bansil - Physical Review B, 1990 - APS
Abstract We consider the Korringa-Kohn-Rostoker coherent-potential-approximation Green's
function for a disordered system of muffin-tin potentials and evaluate its integral over the …

Band theory of the magnetic interaction in MnO, MnS, and NiO

T Oguchi, K Terakura, AR Williams - Physical Review B, 1983 - APS
The interatomic coupling of magnetic moments in the insulating antiferromagnetic transition-
metal compounds MnO, MnS, and NiO is calculated using a theory based on the itinerant …

Analytic approximation for substitutional alloys

R Mills, P Ratanavararaksa - Physical Review B, 1978 - APS
It is shown that the terms in the cumulant expansion of the coherent potential for an
uncorrelated substitutional alloy can be combined by partial summation in such a way that …

Cluster methods for strongly correlated electron systems

G Biroli, G Kotliar - Physical Review B, 2002 - APS
We develop, clarify, and test various aspects of cluster dynamical mean field methods using
a soluble toy model as a benchmark. We find that the cellular dynamical mean field theory …

Korringa-Kohn-Rostoker nonlocal coherent-potential approximation

DA Rowlands, JB Staunton, BL Györffy - Physical Review B, 2003 - APS
Abstract We introduce the Korringa-Kohn-Rostocker nonlocal coherent-potential
approximation (KKR-NLCPA) for describing the electronic structure of disordered systems …