UNiAl is an itinerant antiferromagnet with a transition temperature of 18 K and a huge low-temperature Sommerfeld coefficient of 167 mJ/K2 mole U atoms. A systematic study of the pseudoternary series UNiAl1-xGa x by means of magnetic and specific-heat measurements is presented. The data are interpreted as evidence for a transition from antiferromagnetism to ferromagnetism for x>0.4 with more localized features in the Ga-rich compounds. For x=0.4 competition of ferromagnetic and antiferromagnetic interactions causes a complicated behaviour characterized by two types of magnetic transitions. Huge magnetocrystalline anisotropy is responsible for the rather anomalous behaviour of the ferromagnetic compositions.
Maletta, H., Sechovsky, V., Veenhuizen, P. A., Boer, de, F. R., Havela, L., & Hilscher, G. (1988). From itinerant antiferromagnetism towards localized ferromagnetism in UNi(Al,Ga). Zeitschrift für Physik B : Condensed Matter, 72(4), 455-460. https://doi.org/10.1007/BF01314526