Magnetic-Properties of Fe and Tb in Tbxfe1-X Amorphous Films Studied with Soft-X-Ray Circular and Linear Dichroism

Abstract We have used linearly and circularly polarized X-rays to determine the magnetic properties of several Tb x Fe 1− x amorphous films. Absorption measurements on the M 4.5 edges of Tb and the L 2.3 edges of Fe allowed us to obtain information about the size and direction of local magnetic moments. Our results confirm that linear dichorism in rare earth M 4.5 edges can give useful information about both crystal field and magnetic effects.