Proceedings of the 9th International Conference on X-Ray Absorption Fine Structure

J. Phys. IV France 7 (1997) C2-451-C2-452
DOI: 10.1051/jp4/1997048

Circular Magnetic Diehroism on M_IV, _V(U) Edges in USb_0,5Te_0.5

P. Dalmas de Réotier¹, J.P. Sanchez¹, A. Yaouanc¹, M. Finazzi², Ph. Sainctavit², G. Krill², J.B. Goedkoop³, J. Gordon³, C. Goulon-Ginet³, J.P. Kappler⁴ and O. Vogt<sup>5

1</sup>  Commissariat à l'Énergie Atomique, Département de Recherche Fondamentale sur la Matière Condensée, 38054 Grenoble cedex 9, France
²  Laboratoire pour l'Utilisation du Rayonnement Électromagnétique, bâtiment 209d, Université Paris-Sud, 91405 Orsay cedex, France
³  European Synchrotron Radiation Facility, BP. 220, 38043 Grenoble cedex, France
⁴  Institut de Physique et Chimie des Matériaux de Strasbourg, Groupe d'Étude des Matériaux Métalliques, 23 rue du Loess, 67037 Strasbourg, France
⁵  Eidgenössische Technische Hochschule, 8093 Zurich, Switzerland

Abstract
We report X-ray magnetic circular dichroism measurements performed at the M_IV, _V(U) edges of the ferromagnet USb_0.5Te_0.5. The data have been recorded in fluorescence mode at beamline 6 of the European Synchrotron Radiation Facility. The two dichroic signals are positive indicative of a strong orbital magnetic moment. From the measurements we estimate the z projection of the orbital angular momentum 〈L_z〉. We find 〈L_z〉 = - 3.0. Our result is discussed in relation with published polarized neutron data.

© EDP Sciences 1997