Unveiling the anisotropic fractal magnetic domain structure in bulk crystals of antiskyrmion host (Fe,Ni,Pd)<sub>3</sub>P by small-angle neutron scattering
نویسندگان
چکیده
Intermetallic Pd-doped (Fe,Ni)$_3$P, that crystalizes in a non-centrosymmetric tetragonal structure with $S_4$ symmetry, has recently been discovered to host magnetic antiskyrmions, antivortex-like topological spin textures. In this material, uniaxial anisotropy and dipolar interactions play significant role, giving rise finely branched domain patterns near the surface of bulk crystals, as revealed by previous force microscopy (MFM) measurement. However, small-angle neutron scattering (SANS) is more suitable method for characterizing properties fractal structures at mesoscopic length scale. study, using SANS MFM, we quantitatively investigate single crystals (Fe$_{0.63}$Ni$_{0.30}$Pd$_{0.07}$)$_3$P. The results demonstrate exhibits anisotropic character on scale down width walls. features are gradually lost fields, different field dependences observed 300 K 2 due temperature-dependent anisotropy. This study quantifies fractality highly an antiskyrmion highlights versatility systems.
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ژورنال
عنوان ژورنال: Journal of Applied Crystallography
سال: 2022
ISSN: ['1600-5767', '0021-8898']
DOI: https://doi.org/10.1107/s1600576722008561