Abstract
The results of the experimental investigations of physical properties of the single crystals of Mn5Si3 and MnSi≈ l.7 doped by Ge and Cr are presented. For the first time an existence in Mn5Si3 the first order metamagnetic transition have been observed. From the experimental data it is found that the properties of the induced ferromagnetic state in Mn5Si3 and the doped higher manganese suicides can be interpreted on the basis of the band model. Theoretical calculations conclude that the band character of magnetism in Mn5Si3 is due to MnI atoms in 4(d) positions while atoms in 6(g) positions are covalent bonded and more localized.
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