Abstract
We have investigated the influence of the local environment on the magnetic behavior of substitutional Fe or Co impurities in ${\mathrm{Nb}}_{1\mathrm{\ensuremath{-}}\mathit{x}}$${\mathrm{Mo}}_{\mathit{x}}$ alloys. We have found that the behavior of Fe and Co impurities is very similar in the systems considered here. We have studied the physical mechanisms of the local moment formation at the Fe site in those alloys and discussed what has been suggested in the literature by a different theoretical approach. The isomer shift and hyperfine field at the impurity site have been calculated and compared with experimental data available in the literature. The self-consistent calculations were performed using the real-space linear muffin-tin orbital scheme. \textcopyright{} 1996 The American Physical Society.
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