Hydrogen absorption in uranium ternary intermetallic compounds typically increases ordering temperatures and magnetic moments. The case of URuSn hydride, which does not behave accordingly, can be related to specific H positions revealed by neutron diffraction on deuterides.
Tuning through the onset of magnetic ordering by means of H absorption was found for the U2T2X compounds as U2Co2Sn. For U2Ni2SnD1.8, we demonstrated that the anisotropic lattice expansion leads to U moments reorientation, as a result of hybridisation-induced two-ion anisotropy,with respect to U2Ni2Sn, in which the U U coordination is poised between two regimes.
HAVELA L.;
MILIYANCHUK K.;
KOLOMIETS A. V.;
PEREIRA L. C. J.;
GONCALVES A. P.;
SANTAVA E.;
PROKES K.;
2007-11-08
ELSEVIER SCIENCE SA
JRC41100
0925-8388,
http://www.elsevier.com/locate/jallcom,
https://publications.jrc.ec.europa.eu/repository/handle/JRC41100,
10.1016/j.jallcom.2006.12.076,
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