  Polarized neutron scattering is a very important analysis technique for
studies of magnetism, spintronics, and high-sensitivity measurements, among
others, offering invaluable information. Yet, the efficiency of such
experiments rely on the performance of the polarizing neutron optics to provide
high reflectivity and polarization. Presently, state-of-the-art polarizers like
Fe/Si supermirrors are not able to polarize neutrons at low scattering angles
in a monochromatic beam or able to polarize neutrons with a variety of
wavelengths as for a non-monochromatic beam. To overcome this limitation, it is
suggested to use Co/Ti multilayers on Ti substrates owing to their favorable
scattering length density characteristics. It is shown that this approach
enables a wavelength bandwidth several times larger than achievable with
state-of-the-art materials on Si or glass substrates. Consequently, enabling
the possibility of polarizing neutrons across an extended wavelength range,
including those with very high wavelengths.
