Quantum cluster theories
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 …
models which treat correlations within the cluster explicitly, and correlations at longer length …
The electronic structure of alloys
H Ehrenreich, LM Schwartz - Solid state physics, 1976 - Elsevier
Publisher Summary The chapter presents a discussion on the electronic properties of binary
substitutional alloys within the single particle approximation. The transport and magnetic …
substitutional alloys within the single particle approximation. The transport and magnetic …
Complex energy bands in -brass
A Bansil, H Ehrenreich, L Schwartz, RE Watson - Physical Review B, 1974 - APS
The average-t-matrix approximation (ATA) is used to evaluate complex energy bands in the
disordered alloy α-CuZn over a range of Zn concentrations between 0 and 30 at.%. The …
disordered alloy α-CuZn over a range of Zn concentrations between 0 and 30 at.%. The …
Pair effects in substitutional alloys. I. Systematic analysis of the coherent-potential approximation
L Schwartz, E Siggia - Physical Review B, 1972 - APS
A single-band model is used to study the electronic structure of disordered binary alloys.
Functional-derivative techniques are used to generate an expansion for the electron self …
Functional-derivative techniques are used to generate an expansion for the electron self …
Bethe—Peierls Approximation in the Electronic Theory of Disordered Materials
F Brouers, M Cyrot, F Cyrot-Lackman - Physical Review B, 1973 - APS
The effect of local environment on the total and partial densities of states of a disordered
substitutional binary alloy is calculated within a Bethe—Peierls-type approximation …
substitutional binary alloy is calculated within a Bethe—Peierls-type approximation …
Perturbation theory and thermal transport in mass-disordered alloys: Insights from Green's function methods
Lowest-order quantum perturbation theory (Fermi's golden rule) for phonon-disorder
scattering has been used to predict thermal conductivities in several semiconducting alloys …
scattering has been used to predict thermal conductivities in several semiconducting alloys …
Total and component densities of states in substitutional alloys
L Schwartz, A Bansil - Physical Review B, 1974 - APS
We consider the evaluation of the average electronic spectrum in a disordered binary alloy.
The single-site approximation is reformulated in terms of restricted averages of the total …
The single-site approximation is reformulated in terms of restricted averages of the total …
Residual resistivity of concentrated ferromagnetic disordered alloys
F Brouers, AV Vedyayev, M Giorgino - Physical Review B, 1973 - APS
A theory of the residual electrical resistance of ferromagnetic disordered alloys is presented
in the framework of the coherent-potential approximation. It generalizes a previous …
in the framework of the coherent-potential approximation. It generalizes a previous …
On the temperature dependence of electrical resistivit in concentrated disordered transition binary alloys
F Brouers, M Brauwers - Journal de …, 1975 - jphyslet.journaldephysique.org
Using a two (sd) band model and the CPA theory of conductivity, we calculate the effect of
the phonon induced modification of the density of states on the T-dependence of the …
the phonon induced modification of the density of states on the T-dependence of the …
Geometrically averaged density of states as a measure of localization
Motivated by current interest in disordered systems of interacting electrons, the effectiveness
of the geometrically averaged density of states, ρ g (ω), as an order parameter for the …
of the geometrically averaged density of states, ρ g (ω), as an order parameter for the …