T. Takabatake et al., STRUCTURAL, MAGNETIC, TRANSPORT AND THERMAL-PROPERTIES OF UCU2SN, UPT2SN AND UAU2AL, Journal of the Physical Society of Japan, 61(3), 1992, pp. 778-781
Ternary uranium compounds UCu2Sn and UAu2Al have been found to crystal
lize in the hexagonal ZrPt2Al- and orthorhombic YPd2Si-type structures
, respectively. Magnetic-susceptibility, electric-resistivity and spec
ific-heat measurements reveal that UCu2Sn, UPt2Sn and UAu2Al undergo a
ntiferromagnetic transitions at 16.6, 60 and 25 K, respectively. With
decreasing temperature below T(N), the resistivity of UCu2Sn exhibits
a pronounced peak, whereas those of the other two show a precipitous d
rop. The extrapolated value of C/T at 0 K ranges from 17 mJ/K2 mol for
UPt2Sn to 102 mJ/K2 mol for UAu2Al.