We present experimental neutron reflectivity results showing that it is pos
sible to use V-Ni multilayered systems as cold neutron monochromators and s
upermirrors. Compared to the Ni-Ti optics devices, the V-Ni stacks present
sharp interfaces characterised by a low interfacial roughness and very smal
l interfacial diffusion. (C) 1999 Elsevier Science Ltd. All rights reserved
.