On Magneto Optics of Neutrons and Some Related Phenomena

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Abstract
Formulas are derived describing the phenomenon of total reflection of neutrons by a ferromagnet in dependence on the state of magnetization. It is shown how experiments of this kind can give information concerning the magnetic interaction between neutrons and atomic magnetic moments. A method to obtain well-polarized neutron beams with an intensity loss of only 50 percent of the primary beam is outlined. The effect of pure magnetic scattering and its influence on the transmission effect is discussed; an experimental arrangement for its observation is described. The significance of the approach to saturation in the single transmission effect is discussed in connection with the saturation theory of ferromagnets. Remarks are made concerning the possibility of detecting wall effects of magnetic domains through depolarization of neutron beams.