J. Penfold et al., UNIQUE DENSITY PROFILE DETERMINATION IN THIN-FILMS, Colloids and surfaces. A, Physicochemical and engineering aspects, 86, 1994, pp. 165-170
A recent paper by D.S. Sivia and R. Pynn (SPIE Conf. Proc., Vol. 1738,
1992) has shown theoretically the use of polarised neutrons and a mag
netised substrate to determine uniquely a density profile from neutron
reflectometry data. Presented here are preliminary results of the tec
hnique applied to a polymer film on a magnetised nickel substrate.