Vh. Tran et al., TRANSITION FROM ANTIFERROMAGNETISM, THROUGH FERROMAGNETIC SPIN FLUCTUATIONS TO THE KONDO STATE IN UPD5-XAUX, Journal of alloys and compounds, 196(1-2), 1993, pp. 219-223
The lattice parameters of UPd5-xAux alloys together with their magneti
c susceptibility, magnetization and electrical resistivity characteris
tics are presented. A change in the crystal structure from the cubic A
uCu3-type to the cubic AuBe5-type occurs around x = 1.5. Substitution
of one Au atom for one Pd atom in UPd5 suppresses its antiferromagneti
sm to temperatures below 4.2 K. The experimental data of UPd3Au2 and U
Pd2.5Au2.5 are discussed in terms of ferromagnetic spin fluctuations a
nd those of UPd2Au3 in terms of the Kondo behaviour.