RNi9In2 (R= Pr, Nd, Eu) Compounds and their Hydrides

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Abstract:

RNi9In2 and their hydrides crystallize in the YNi9In2 structure type. Low pressure hydrogenation leads to absorption of 1.5-3.4 H/f.u. RNi9In2 (R= Pr, Nd, Eu) as well as PrNi9In2H1.7 and NdNi9In2H1.5 exhibit Curie-Weiss behaviour in the 2-300 K temperature range. EuNi9In2 reveals ferromagnetism below approximately 40 K, which may be due to a secondary phase. Its hydride is Pauli paramagnet, indicating Eu3+ state. RNi9In2 (R= Pr, Nd) as well as PrNi9In2H1.7 and NdNi9In2H1.5 exhibit Curie-Weiss behaviour and lack of magnetic ordering down to T = 2 K.

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Solid State Phenomena (Volume 194)

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45-49

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November 2012

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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