Abstract
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.
Original language | English |
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Pages (from-to) | 455-460 |
Number of pages | 6 |
Journal | Zeitschrift für Physik B : Condensed Matter |
Volume | 72 |
Issue number | 4 |
DOIs | |
Publication status | Published - 1988 |