Abstract
Hydrogen interaction with RNi intermetallic compounds and the influence of hydrogen on magnetic properties of these compounds were investigated. Ternary hydrides GdNiH3.2, TbNiH3.4, DyNiH3.4 and SmNiH3.7 were prepared by hydrogenation of the initial alloys at room temperature and hydrogen pressure up to 0.1 MPa. Hydrides possess orthorhombic CrB-type structure (S.G. Cmcm). The formation of hydrides results in substantial expansion of the metallic sublattices, weakening of the ferromagnetic interactions and decreasing of the paramagnetic Curie temperatures. The article was translated by the author.
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Original Russian Text © Yu.L. Yaropolov, V.N. Verbetsky, A.S. Andreenko, K.O. Berdyshev, S.A. Nikitin, 2010, published in Neorganicheskie Materialy, 2010, Vol. 46, No. 4, pp. 421–428.
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Yaropolov, Y.L., Verbetsky, V.N., Andreenko, A.S. et al. Magnetic properties of the intermetallic compounds RNi (R=Gd, Tb, Dy, Sm) and their hydrides. Inorg Mater 46, 364–371 (2010). https://doi.org/10.1134/S0020168510040084
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DOI: https://doi.org/10.1134/S0020168510040084