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Small-angle neutron scattering by spatially inhomogeneous ferromagnets with a nonzero average uniaxial anisotropy

Zaporozhets, V. D.*; Oba, Yojiro  ; Michels, A.*; Metlov, K. L.*

Micromagnetic theory well explains the magnetic small-angle neutron scattering (SANS) data of bulk ferromagnets. However, only the samples having random magnetic anisotropy are mainly handled. In this study, the micromagnetic SANS theory is extended to allow to analyze uniaxial magnetic anisotropy. Micromagnetic response functions for SANS are computed analytically for several practical arrangements of anisotropy and external magnetic field orientations. This theory agrees well with the experimental SANS data of a practical soft magnet and plastically-deformed Ni and successfully provides the uniaxial anisotropy quality factors.



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Category:Chemistry, Multidisciplinary



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