Perspectives of polarized-neutron reflectometry: magnetic domains and off-specular scattering

Specular reflectometry of polarized-neutrons was developed in the 1980s as a tool for measuring magnetic depth profiles in flat films, which were late rally uniform. When the lateral uniformity breaks down in an assembly of do mains, off-specular grazing incidence scattering takes place. This review d iscusses this new frontier of reflectometry, describing the advances that a re taking place in linking the observations of the scattering at grazing in cidence with the size, the statistics, and the magnetic orientation of the domains. The article discusses also the progress made in linking the domain distribution thus found with the transport properties of these nanomagneti c systems. (C) 2001 Published by Elsevier Science B.V.