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Strong 5f Ferromagnetism in UH3-Based Materials

Published online by Cambridge University Press:  27 April 2016

Ladislav Havela*
Affiliation:
Faculty of Mathematics and Physics, Charles University, Ke Karlovu 3, Prague 2, Czech Republic
Mykhaylo Paukov
Affiliation:
Faculty of Mathematics and Physics, Charles University, Ke Karlovu 3, Prague 2, Czech Republic
Ilya Tkach
Affiliation:
Faculty of Mathematics and Physics, Charles University, Ke Karlovu 3, Prague 2, Czech Republic
Volodymyr Buturlim
Affiliation:
Faculty of Mathematics and Physics, Charles University, Ke Karlovu 3, Prague 2, Czech Republic
Zdenek Matej
Affiliation:
Faculty of Mathematics and Physics, Charles University, Ke Karlovu 3, Prague 2, Czech Republic MAX IV Laboratory, Lund University, Fotongatan 2, 225 94 Lund, Sweden
Silvie Maskova
Affiliation:
Faculty of Mathematics and Physics, Charles University, Ke Karlovu 3, Prague 2, Czech Republic
Ilja Turek
Affiliation:
Faculty of Mathematics and Physics, Charles University, Ke Karlovu 3, Prague 2, Czech Republic
Martin Divis
Affiliation:
Faculty of Mathematics and Physics, Charles University, Ke Karlovu 3, Prague 2, Czech Republic
Daria Drozdenko
Affiliation:
Faculty of Mathematics and Physics, Charles University, Ke Karlovu 3, Prague 2, Czech Republic
Miroslav Cieslar
Affiliation:
Faculty of Mathematics and Physics, Charles University, Ke Karlovu 3, Prague 2, Czech Republic
Milan Dopita
Affiliation:
Faculty of Mathematics and Physics, Charles University, Ke Karlovu 3, Prague 2, Czech Republic
Zuzana Molcanova
Affiliation:
Institute of Experimental Physics, Slovak Academy of Sciences, Kosice, Slovakia
Marian Mihalik
Affiliation:
Institute of Experimental Physics, Slovak Academy of Sciences, Kosice, Slovakia
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Abstract

Several diverse types of UH3-based hydrides can be prepared by hydrogenation of bcc U-based alloys. Pair Distribution Function (PDF) analysis using high-energy X-rays identified that the (UH3)1-xMox hydrides are nanocrystalline, with the structure motif based mainly on the β-UH3 structure. α-UH3 represents a minority component. On the other hand, PDF of the (UH3)1-xZrx hydrides corresponds well to the α-UH3 crystal structure. All the hydrides are ferromagnetic, with the Curie temperature TC reaching up to 203 K.

Type
Articles
Copyright
Copyright © Materials Research Society 2016 

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References

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