Abstract
Polarized small-angle neutron scattering (SANS) technique is used to study spatially ordered one-dimensional (ID) magnetic nanowires. In our experiments a typical q-dependence consists of the diffuse small-angle scattering and the Bragg peak corresponding to the scattering on the regular structure of the porous matrix. We measured the total (nuclear and magnetic) scattering and the nuclear–magnetic interference as a polarization-dependent part of the scattering. The field- and temperature-dependent scattering intensity is extracted as I{H,T}(q)=I(q, H, T)−I(q, 0, TR). It is shown that the magnetic scattering I{H,T}(q), obtained from the polarization-independent part, brings new and principally different information as compared to the interference term ΔI(q). We present Co embedded into mesoporous aluminosilicate matrices (MAS) as an example of investigations of the spatially ordered one-dimensional magnetic nanosystems.
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