Abstract
The electric field gradient (EFG) and asymmetry parameter (η) for nontransitional dilute alloys of Al are calculated upto second nearest neighbour (2NN) site. The valence effect contribution to EFG is evaluated using the perturbed electronic charge density, calculated self-consistently in the density functional formalism. The size effect contribution is evaluated in the elastic continuum model. The calculated values of EFG and η are found to be in reasonable agreement with the experimental values. The size effect contribution is found to be larger than the valence effect contribution at the 1NN site for most of the alloys and it is vice versa at the 2NN site.
Published Version
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