NON-SPECULAR SPIN-FLIPPED NEUTRON REFLECTIVITY FROM A COBALT FILM ON GLASS

From polarized neutron reflection experiments on a thin Co layer on gl ass at various applied fields it is shown beyond doubt that neutron sp in-hip reflection in an applied magnetic field is non-specular in agre ement with theory. It is shown that the deviations from the specular p osition at moderate fields is very substantial for wavelengths larger than a few tenths of a nm. The advantages of a curved stacked-mirror p olarization analyzer, which recently has been installed on ROG at IRI, are discussed. (C) 1998 Elsevier Science B.V. All rights reserved.