Radaelli, PG;
Radaelli, J;
Waterfield-Price, N;
Johnson, RD;
(2020)
Micromagnetic modeling and imaging of
vortex|meron structures in an oxide|metal heterostructure.
Physical Review B
, 101
(14)
, Article 144420. 10.1103/PhysRevB.101.144420.
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Abstract
Using micromagnetic simulations, we have modeled the formation of imprinted merons and antimerons in cobalt overlayers of different thickness (1–8 nm), stabilized by interfacial exchange with antiferromagnetic vortices in α − Fe 2 O 3 . Structures similar to those observed experimentally could be obtained with reasonable exchange parameters, also in the presence of surface roughness. We produce simulated meron and antimeron images by magnetic force microscopy and nitrogen-vacancy center microscopy, and established signatures of these topological structures in different experimental configurations.
| Type: | Article |
|---|---|
| Title: | Micromagnetic modeling and imaging of vortex|meron structures in an oxide|metal heterostructure |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevB.101.144420 |
| Publisher version: | https://doi.org/10.1103/PhysRevB.101.144420 |
| Language: | English |
| Additional information: | This version is the version of record. For information on re-use, please refer to the publisher’s terms and conditions. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10096901 |
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