This article is cited in 3 papers

International conference ''Phase transitions, critical and nonlinear phenomena in condensed matter'', Makhachkala, September 6-9, 2017
Magnetism

The effect of structural inhomogeneities and gas-forming impurities on the functional properties of high purity rare-earth metals

I. S. Tereshina^a, V. B. Chzhan<sup>b

a</sup> Lomonosov Moscow State University
^b Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences

Abstract: Rare-earth metals (REM) gadolinium and dysprosium, and also the Gd–H and Dy–H systems in which magnetic order–order and order–disorder phase transitions are accompanied by significant magnetocaloric effect, have been studied. The materials have been prepared in various structural states. It is stated that there is a substantial difference of their functional properties in the dependence on the features of the structural state and also on the existence of a gas-forming impurity. It has been proved experimentally and theoretically that the Curie temperatures of Gd samples with grain sizes of $\sim$ 200 nm increases as a result of hydrogenation, while the magnetic phase transition temperatures of Dy are almost unchanged Inhomogeneities.

DOI: 10.21883/FTT.2018.06.45983.10M

 English version: Physics of the Solid State, 2018, 60:6, 1115–1119

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