Understanding the emergence of Neel type skyrmions and bubbles in uniaxial centrosymmetric ferrimagnetic thin-film at room temperature

DOI

One of the major technological challenges is the development of novel memory technologies that allow fast and energy-efficient reading and writing of information. Magnetic materials allow solving this challenge by employing exotic and stable chiral and topological magnetic states such as spin spirals, skyrmions, and bubbles. The Dzyaloshinskii-Moriya interaction (DMI) is often responsible for such topological magnetic states. DMI manifests traditionally at metallic ferromagnet/heavy-metal interfaces, owing to inversion symmetry breaking and spin-orbit coupling by heavy metal. Our recent experimental observations suggest that Neel-type skyrmions and bubbles can be induced even in rare-earth yttrium iron garnet (YIG) at room temperature through the application of alternating magnetic fields. Here we propose to use resonant X-rays at forbidden reflections (where we are sensitive to the charge, magnetic, and orbital ordering) to understand the underlying mechanism.

Identifier
DOI https://doi.org/10.15151/ESRF-ES-898991248
Metadata Access https://icatplus.esrf.fr/oaipmh/request?verb=GetRecord&metadataPrefix=oai_datacite&identifier=oai:icatplus.esrf.fr:inv/898991248
Provenance
Creator Steven LEAKE ORCID logo; Dmitry KARPOV ORCID logo
Publisher ESRF (European Synchrotron Radiation Facility)
Publication Year 2025
Rights CC-BY-4.0; https://creativecommons.org/licenses/by/4.0
OpenAccess true
Representation
Resource Type Data from large facility measurement; Collection
Discipline Particles, Nuclei and Fields