Magnetic properties and structure of hydrogen-amorphized intermetallic compounds RFe2Hx (R=Y, Gd, Tb, Dy, Ho, Er) |
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Authors: | N K Zaikov N V Mushnikov V S Gaviko A E Ermakov |
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Institution: | (1) Institute of Metal Physics, Ural Branch of the Russian Academy of Sciences, 620219 Ekaterinburg, Russia |
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Abstract: | The magnetic properties and structure of hydrogen-amorphized RFe2Hx compounds (R=Y, Gd, Tb, Dy, Ho, Er) have been studied. It is shown that amorphization of the RFe2Hx hydrides results in an increase of Fe-Fe, and a decrease of R-Fe exchange interaction energy compared to their crystalline
hydride counterparts. The magnetic structure of amorphous RFe2Hx compounds, with the exception of those with R=Y and Gd is apparently noncollinear ferrimagnetic, as in the crystalline hydrides.
A model of the heterophase state of amorphous RFe2Hx hydrides based on x-ray diffraction and magnetic data is proposed.
Fiz. Tverd. Tela (St. Petersburg) 39, 908–912 (May 1997) |
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