Neutron Reflection from the Layered Structure Placed in a Perpendicularly Directed Magnetic Field

The relationships for reflection and transmission amplitudes from a layered structure placed in a magnetic field are given. A calculation method whereby a vacuum gap is introduced between the magnetic field region and the structure has been used. We calculate neutron reflection and transmission factors and polarization for layered noncollinear and nonplanar structures placed in a magnetic field perpendicularly directed to the layers. The reflection of polarized neutrons from a magnetic layered structure of Al(10 nm)/Co(27.5 nm)/Al(140 nm)/Ni(27.5 nm)/Si, placed in a magnetic field perpendicular to the layers, has been experimentally determined. A conclusion about the occurrence of neutron polarization in the direction perpendicular to the magnetic moments of the layers has been made. This occurs due to the inequality of probabilities of neutron spin flip along and opposite the magnetic field direction.