Structure and Magnetism of New U2T2X Hydrides

نویسندگان

  • K. Miliyanchuk
  • A. V. Kolomiets
چکیده

U2T2X compounds (Mo2FeB2 structure type, T transition metal, X p-element), exhibiting wide range of magnetic properties from weak paramagnetism to 5f-antiferromagnetism, have been checked for hydrogen absorbtion properties. Besides U2Co2Sn hydrides, which have already been reported, U2Ni2SnH1.8, U2Ni2InH1.9, U2Co2InH1.9, and U2Fe2SnH1.9, have been synthesized. Hydrogenation leads to the enhancement of magnetic interaction for all compounds. U2Ni2SnH1.8 and U2Ni2InH1.9 order antiferromagnetically similar to the initial compounds, and the Néel temperature increases from 26 K to 87 K and from 15 K to 60 K, respectively.

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تاریخ انتشار 2005