Observation of the chiral soliton lattice above room temperature

DOI: 10.1002/apxr.202200116

Authors: R. Brearton (University of Oxford; Diamond Light Source) , S. H. Moody (Durham University) , L. A. Turnbull (Durham University) , P. D. Hatton (Durham University) , A. Štefančič (University of Warwick) , G. Balakrishnan (University of Warwick) , G. Van Der Laan (Diamond Light Source) , T. Hesjedal (Diamond Light Source; University of Oxford)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Advanced Physics Research , VOL 2

State: Published (Approved)
Published: April 2023
Diamond Proposal Number(s): 30613

Abstract: Magnetic chiral soliton lattices (CSLs) emerge from the helical phase in chiral magnets when magnetic fields are applied perpendicular to the helical propagation vector, and they show great promise for next-generation magnetic memory applications. These one-dimensional structures are previously observed at low temperatures in samples with uniaxial symmetry. Here, it is found that in-plane fields are the key to stabilizing the CSL in cubic Co8Zn10Mn2 over the entire temperature range from 15 K to below the Curie temperature (365 K). Using small-angle resonant elastic X-ray scattering, it is observed that the CSL is stabilized with an arbitrary in-plane propagation vector, while its thin plate geometry plays a deciding role in the soliton wavelength as a function of applied field. This work paves the way for high temperature, real world applications of soliton physics in future magnetic memory devices.

Journal Keywords: chiral soliton lattices; Dzyaloshinskii–Moriya interaction; magnetic soli- tons; topological spin textures; transmission resonant elastic X-ray scattering

Diamond Keywords: Data Storage; Skyrmions

Subject Areas: Materials, Physics


Instruments: I10-Beamline for Advanced Dichroism - scattering

Added On: 01/05/2023 08:57

Documents:
Advanced Physics Research - 2023 - Brearton - Observation of the Chiral Soliton Lattice above Room Temperature.pdf

Discipline Tags:

Quantum Materials Physics Components & Micro-systems Information & Communication Technologies Magnetism Materials Science

Technical Tags:

Scattering Resonant Elastic X-ray Scattering (REXS)