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Showing 1 to 4 of 4 for “"Coherent Potential Approximation"”.
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An Investigation of the Multiple Scattering of Waves in Two-Dimensional Random Media
Numerical studies of the ensemble average, or coherent, wave in a two-dimensional random medium have been undertaken for the steady-state and transient cases. The medium consisted of a tensioned mesh with a uniform distribution of point masses attached at the intersection points of the mesh. For …
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Electronic structure and energetics of Fe-based superconductors: Effects of chemical and magnetic disorder in (Ba-X)(Fe-Y)2As2
… scattering theory in combination with the coherent-potential approximation (CPA) to handle chemical (alloying) and magnetic (orientational) disorder, all implemented within a self-consistent-field, density functional theory (DFT). For $Tm$ doping, we detail the Fermi-surface evolution and …
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Ab-initio calculations for dilute magnetic semiconductors
… KKR Green function method in connection with the coherent potential approximation (CPA), which allows to include the random substitutional disorder in a mean field-like approximation for the electronic structure. Finally we calculate the exchange coupling constants Jij between two impurities in a …