Effect of Dzyaloshinski-Moriya interaction on elastic small-angle neutron scattering

Article

关键词: POLARIZATION ANALYSIS;    WEAK FERROMAGNETISM;    MAGNETIC-MATERIALS;    SKYRMION LATTICE;    SLOW-NEUTRONS;    CRYSTALS;    STATES;   

DOI  :  10.1103/PhysRevB.94.054424

来源: SCIE

【 摘 要 】

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. 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.

【 授权许可】

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