SURFACE-SENSITIVE MAGNETIC NEUTRON BRAGG SCATTERING - PERSPECTIVES AND LIMITS

In the application of neutron scattering to problems related with surf ace and interfacial magnetism three different experimental techniques may be envisaged: reflectivity measurements, glancing angle neutron sc attering and truncation rod scattering. While neutron reflectivity mea surements have become a routine experimental tool nowadays, the two ot her techniques are virtually unexplored. In this article I focus onto glancing angle neutron Bragg scattering and discuss some present attem pts and applications, future prospects and the limitations of this new technique in the field of surface-related magnetism. A special emphas is is thereby put on the performance of the evanescent neutron wave di ffractometer EVA at the Institut Laue-Langevin in Grenoble.