A new type of a neutron polarizing supermirror was developed which ref
lects spin-down neutrons, contrary to all hitherto produced polarizing
supermirrors which reflect spin-up neutrons. Reflectivities of 80-90%
and polarizations up to 96% were achieved in a scattering vector inte
rval from 0.176 to 0.35 nm(-1). (C) 1998 Elsevier Science B.V. All rig
hts reserved.