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Title: Effect of noncollinear magnetic order on the hyperfine interactions in Pt3Fe
Authors: Woźniakowski, Andrzej
Deniszczyk, Józef
Szymański, K.
Keywords: materiały sypkie; struktura elektroniczna; metale przejściowe; stopy; związki międzymetaliczne; efekt Mössbauera; spektroskopia
Issue Date: 2011
Citation: Acta Physica Polonica A, Vol. 119, nr 1 (2011), s. 65-67
Abstract: The investigations of the hyperfine interactions in Pt3Fe with the noncollinear magnetic order by means of ab initio methods are presented. It is shown that the ground state magnetic order of Pt3Fe is of noncollinear character. Electric field gradient and hyperfine magnetic field at 57Fe nucleus were calculated and their dependence on the strength of Coulomb correlation interaction is discussed. The calculated values of electric field gradient correspond with the experimental data and the best agreement was found when the enhanced Coulomb correlation interaction for 3d-states of Fe was considered. Lattice, local valence electron (3d, 4p) and weakly bound 3p semicore electron contributions to electric field gradient are separated out and discussed.
ISSN: 0587-4246
Appears in Collections:Artykuły (WNŚiT)

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