Crystal structure, magnetic and thermal properties of UCoSnD_0.6

Chem. Met. Alloys 1 (2008) 174-179

https://doi.org/10.30970/cma1.0054

Khrystyna MILIYANCHUK, Ladislav HAVELA, João C. WAERENBORGH, Piotr M. GACZYŃSKI, Oleksandr PROKHNENKO

The new deuteride UCoSnD_0.6 was studied by neutron powder diffraction, magnetic measurements, specific heat studies and Mössbauer spectroscopy. It was shown that the insertion of deuterium atom inside the U₃Co tetrahedra with concomitant lattice expansion by 3.2% leads to the pronounced enhancement of magnetism. The reason for such a behaviour is a partial localization of the electronic states, which is reflected in the increase of the density of states at the Fermi level and increase of the s-electron density on the Sn nuclei.

Crystal structure of UCoSnD_0.6.

Keywords

Deuteride / Uranium / Neutron diffraction / Specific heat / Mössbauer spectra