Anomalous High Field Magnetization in Sc(Co1-xAlx)2

Abstract
Anomalous magnetization curves observed under the strong pulsed magnetic fields up to 520 kOe are understood with itinerant electron metamagnetism. From the results of Sc(Co 1- x Al x ) 2 the critical field of the transition and the spontaneous moment after the transition of ScCo 2 can be estimated to be a few megagauss and about 0.4 µ B /Co, respectively. These are consistent with recent theoretical results.