Effect of Dzyaloshinski-Moriya interaction on spin-polarized neutron scattering
arXiv:1605.08586 · doi:10.1103/PhysRevB.94.054424
Abstract
For magnetic materials containing many lattice imperfections (e.g., nanocrystalline magnets), the relativistic Dzyaloshinski-Moriya (DM) interaction may result in nonuniform spin textures due to the lack of inversion symmetry at interfaces. Within the framework of the continuum theory of micromagnetics, we explore the impact of the DM interaction on the elastic magnetic small-angle neutron scattering (SANS) cross section of bulk ferromagnets. It is shown that the DM interaction gives rise to a polarization-dependent asymmetric term in the spin-flip SANS cross section. Analysis of this feature may provide a means to determine the DM constant.
10 pages, 7 figures
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- Micromagnetic simulation of neutron scattering from spherical nanoparticles: Effect of pore-type defects
- Magnetic neutron scattering from spherical nanoparticles with Neel surface anisotropy: Atomistic simulations
- Small-angle neutron scattering by spatially inhomogeneous ferromagnets with a nonzero average uniaxial anisotropy
- Quasi Static Remanence in Dzyaloshinskii-Moriya Interaction driven Weak Ferromagnets and Piezomagnets
- Magnetic neutron scattering from spherical nanoparticles with Neel surface anisotropy: Analytical treatment
- Enhanced Magnetism & Time - Stable Remanence at the Interface of Hematite and Carbon Nanotubes
- Magnetic Guinier law
- Generic role of the Dzyaloshinskii-Moriya interaction in nanocrystalline ferromagnets
- Uniaxial polarization analysis of bulk ferromagnets: Theory and first experimental Results
- Spin-disorder-induced angular anisotropy in polarized magnetic neutron scattering
- Effect of interfacial Dzyaloshinskii-Moriya interaction on polarized neutrons reflection
- Scaling in Magnetic Neutron Scattering