Magnetic field-induced chiral soliton lattice in the bulk magnetoelectric helimagnet Cu${}_2$OSeO${}_3$

Abstract

Chiral soliton lattices (CSLs) are anharmonic magnetic structures typically found in uniaxial chiral magnets. In this study, we report the observation of CSL in bulk Cu${}_2$OSeO${}_3$, a chiral insulator known for its magnetoelectric properties. Using small-angle neutron scattering (SANS) experiments, we demonstrate the formation of CSLs in Cu${}_2$OSeO${}_3$ at low temperatures, driven by the competition between cubic anisotropy and magnetic field. Our observations of higher harmonics in the SANS signal clearly indicate the anharmonic nature of the spiral. This finding underscores the complex interplay between magnetic interactions in Cu${}_2$OSeO${}_3$, offering insights for potential applications of CSLs in electric-field controlled spintronic devices.

References in corpus (8)

• Electric field-induced Skyrmion distortion and giant lattice rotation in the magnetoelectric insulator Cu2OSeO3
• Observation of two independent skyrmion phases in a chiral magnetic material
• Switching Chiral Solitons for Algebraic Operation of Topological Quaternary Digits
• Theory of spin current in chiral helimagnet
• Thermodynamic evidence of a second skyrmion lattice phase and tilted conical phase in Cu${}_2$0SeO${}_3$
• Element-specific soft X-ray spectroscopy, scattering and imaging studies of skyrmion-hosting compound Co${}_8$Zn${}_8$Mn${}_4$
• Metastable solitonic states in the strained itinerant helimagnet FeGe
• Direct observation of the exchange anisotropy in the helimagnetic insulator Cu${}_2$OSeO${}_3$

Cited by in corpus (1)

• On flat bands in the $J_1$-$J_2$-$J_3$ XXZ sawtooth chain