UAs/Co multilayers studied by x-ray magnetic circular dichroism at the U M4,5 edges -: art. no. 054405

X-ray magnetic circular dichroism (XMCD) measurements have been performed on UAs/Co multilayers at the M-4,M-5 edges of uranium. The linear relation between the polar Kerr rotation previously measured and the 5f magnetic moment deduced from XMCD has been demonstrated. Temperature and field dependences have been studied. The ferromagnetic character of the UAs layers is clearly shown and room-temperature measurements indicate the presence of an induced uranium moment through exchange coupling with the Co magnetic moments.