Abstract
The review of experimental methods of small-angle polarized neutron scattering (SAPNS) is presented. The developed methods of SAPNS such as the left-right asymmetry of scattering, the separation of elastic and inelastic magnetic scattering by 3-dimensional analysis and others allow to get the precise information about spin correlations in magnetics that can not be obtained by others methods. Several results are presented for the illustration of SAPNS methods. Among them the critical exponent for correlation radius ( ν = 0.67 ± 0.01 for Fe), the dynamical exponent ( z = 2.617 ± 0.004 for Fe), a temperature behavior of magnitostriction near T C in PdFe(4 at.%), the study of 3-spin dynamics and the confirmation of ‘hard’ variant of dipolar critical dynamics.
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