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In this work we present the influence of atomic disorder on the electronic and magnetic properties of Ni_{2}MnGa_{1-x}Ge_{x} and Ni_{2}MnSn Heusler alloys. Ab initio band calculations were performed for the experimental lattice parameters. We applied SPR-KKR-CPA methods in the local spin density approximation.
Institute of Molecular Physics, Polish Academy of Sciences, M. Smoluchowskiego 17, 60-179 Poznań, Poland
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