Itinerant-electron metamagnetism of (Y, Lu)(Co, Al)2 at finite temperature

The metamagnetic transition and paramagnetic susceptibility for the pseudo-binary compound (Y, Lu)(Co, Al), with the cubic Laves-phase structure are measured. The observed results are analysed on the basis of phenomenological spin-fluctuation theory for itinerant-electron metamagnetism. A satisfactory agreement between experiment and theory is obtained qualitatively.