強磁性重格子による緩中性子の散亂(物理學)

概要

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The cross section for the elastic scattering of slow neutrons in the ferromagnetic superlattice has been worked out theoretically and found to consist of two terms, one of which is due to nuclear scattering and the other due to the interference between nuclear and magnetic scattering of slow neutrons. It should be pointed Out that the latter cross section depends sensibly upon the spin orientations of incident neutrons and, further, shows the peculiar variations with temperature in the neighbourhood of Curie points of the ferromagnetic superlattice although the former shows rather monotonous behaviours as is expected. Since there is no experiment to be attempted to observe such interesting behaviours of the mentioned cross sections, it is the purpose of this note to suggest an experimeintal method to detect the combined order-disorder transformation in the ferromagnetic superlattice by the use of slow neutron scattering.
宇宙航空研究開発機構の論文
1949-09-20