Probing fractal magnetic domains on multiple length scales in Nd2Fe14B

Abstract

Using small-angle neutron scattering, we demonstrate that the complex magnetic domain patterns at the surface of Nd2Fe14B, revealed by quantitative Kerr and Faraday microscopy, propagate into the bulk and exhibit structural features with dimensions down to 6 nm, the domain wall thickness. The observed fractal nature of the domain structures provides an explanation for the anomalous increase in the bulk magnetization of Nd2Fe14B below the spin-reorientation transition. These measurements open up a rich playground for studies of fractal structures in highly anisotropic magnetic systems.

arXiv commentAccepted for publication in Phys. Rev. Lett. (4 pages, 4 figures)

Cited by in corpus (16)

• Use of frit-disc crucibles for routine and exploratory solution growth of single crystalline samples
• Room-temperature antiskyrmions and sawtooth surface textures in a noncentrosymmetric magnet with $S_4$ symmetry
• Manipulating of magnetism in the topological semimetal EuCd2As2
• Anisotropic fractal magnetic domain pattern in bulk Mn${}_{1.4}$PtSn
• Magnetic neutron scattering on nanocomposites: decrypting cross-section images using micromagnetic simulations
• X-ray diffraction microscopy based on refractive optics
• Unveiling the anisotropic fractal magnetic domain structure in bulk crystal of antiskyrmion-host (Fe,Ni,Pd)${}_3$P by small-angle neutron scattering
• Imaging Domains in a Zero-Moment Half Metal
• Fingerprint of vortex-like flux closure in isotropic Nd-Fe-B bulk magnet
• Imaging the magnetic nano-domains in Nd2Fe14B
• Evolution of short-range magnetic correlations in ferromagnetic Ni-V alloys
• Topological Magnetic Hysteresis in Single Crystals of CeAgSb2 Ferromagnet
• Imaging the magnetic states in an actinide ferromagnet UMn${}_2$Ge${}_2$
• Anisometric mesoscale nuclear and magnetic texture in sintered Nd-Fe-B magnets
• Magnetic structures on locally inverted interlayer coupling region of bilayer magnetic system
• Temperature dependent striction effect in a single crystalline Nd2Fe14B revealed using a novel high temperature resistivity measurement technique