Magnetic phenomena in UNi1-xRhxAl compounds

We report on structure investigation and magnetization study of UN1-xRhxAl solid solutions between an antiferromagnet UNiAl and a ferromagnet URhAl. T he ZrNiAl-type hexagonal crystal structure of the parent compounds is prese rved in the whole concentration range. Magnetization was measured as a func tion of magnetic field, temperature and external hydrostatic pressure. The observed complex evolution of magnetic phenomena with Rh substitution for N i is discussed in terms of effects of the varying Sf-ligand hybridization. A tentative magnetic phase diagram is proposed. (C) 1999 Elsevier Science S .A. All rights reserved.