Crystal structure, magnetic and thermal properties of UCoSnD0.6

 

Chem. Met. Alloys 1 (2008) 174-179

 

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

 

The new deuteride UCoSnD0.6 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 UCoSnD0.6.

 

Keywords

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