Observation of distorted tilted conical phase at the surface of a bulk chiral magnet with resonant elastic x-ray scattering

Abstract

We report on various magnetic configurations including spirals and skyrmions at the surface of the magnetic insulator Cu${}_2$OSeO${}_3$ at low temperatures with a magnetic field applied along <100> using resonant elastic X-ray scattering (REXS). We observe a well-ordered surface state referred to as a distorted tilted conical spiral (TC) phase over a wide range of magnetic fields. The distorted TC phase shows characteristic higher harmonic magnetic satellites in the REXS reciprocal space maps. Skyrmions emerge following static magnetic field cycling and appear to coexist with the distorted TC phase. Our results indicate that this phase represents a distinct and stable surface state that does not disappear with field cycling and persists until the field strength is increased sufficiently to create the field-polarized state.

References in corpus (26)

• Skyrmion Lattice in a Chiral Magnet
• Magnetic skyrmion artificial synapse for neuromorphic computing
• Long wavelength helimagnetic order and skyrmion lattice phase in Cu2OSeO3
• Electric field-induced Skyrmion distortion and giant lattice rotation in the magnetoelectric insulator Cu2OSeO3
• Magnetoelectric coupling in the cubic ferrimagnet Cu2OSeO3
• Observation of two independent skyrmion phases in a chiral magnetic material
• Chiral surface twists and skyrmion stability in nanolayers of cubic helimagnets
• New magnetic phase of the chiral skyrmion material Cu2OSeO3
• Multidomain Skyrmion Lattice State in Cu${}_2$OSeO${}_3$
• Coupled skyrmion sublattices in Cu2OSeO3
• Surface sensitivity of the spin Seebeck effect
• In situ Electric Field Skyrmion Creation in Magnetoelectric Cu${}_2$OSeO${}_3$
• Resonant Elastic X-ray Scattering from the Skyrmion Lattice in Cu${}_2$OSeO${}_3$
• Low spin wave damping in the insulating chiral magnet Cu${}_2$OSeO${}_3$
• Thermodynamic evidence of a second skyrmion lattice phase and tilted conical phase in Cu${}_2$0SeO${}_3$
• Microwave spectroscopy of the low-temperature skyrmion state in Cu2OSeO3
• Helimagnon resonances in an intrinsic chiral magnonic crystal
• Optically probing symmetry breaking in the chiral magnet Cu2OSeO3
• Screw dislocations in cubic chiral magnets
• Ferromagnetic resonance with magnetic phase selectivity by means of resonant elastic x-ray scattering on a chiral magnet
• Field-induced reorientation of helimagnetic order in Cu${}_2$OSeO${}_3$ probed by magnetic force microscopy
• All-electrical detection of skyrmion lattice state and chiral surface twists
• Direct observation of the exchange anisotropy in the helimagnetic insulator Cu${}_2$OSeO${}_3$
• Chiral surface spin textures in Cu${}_2$OSeO${}_3$ unveiled by soft x-ray scattering in specular reflection geometry
• Imaging magnetic spiral phases, skyrmion clusters, and skyrmion displacements at the surface of bulk Cu${}_2$OSeO${}_3$
• Growth and helicity of non-centrosymmetric Cu${}_2$OSeO${}_3$ crystals

Cited by in corpus (2)

• Helical spin dynamics in Cu${}_2$OSeO${}_3$ as measured with small-angle neutron scattering
• Riemannian geometric classification and emergent phenomena of magnetic textures