Polarized SANS: critical scattering in invars
- Br¨¹ck, E.H.
- Grigoriev, S.V.
- Maleyev, S.V.
- Okorokov, A.I.
- Eckerlebe, H.
- van Dijk, N.H.
DOIAbstract
Small-angle polarized neutron scattering experiments on ordered invar Fe75Pt25 alloy were performed using a special "inclined" magnetic field geometry. Two contributions to the critical magnetic scattering were studied in the temperature range around TC¡Ö400 K. One of them comes from the pair-spin correlation function. Another contribution is made by the three-spin chiral fluctuations. It is separated from other contributions as the asymmetric part of the polarization-dependent scattering
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