Micromagnetic modelling and imaging of vortex|merons structures in an oxide|metal heterostructure

Autor:	Radaelli, PG, Radaelli, J, Waterfield-Price, N, Johnson, RD
Jazyk:	angličtina
Rok vydání:	2019
Předmět:	Condensed Matter - Strongly Correlated Electrons Strongly Correlated Electrons (cond-mat.str-el) Condensed Matter - Mesoscale and Nanoscale Physics Mesoscale and Nanoscale Physics (cond-mat.mes-hall) FOS: Physical sciences
Popis:	Using micromagnetic simulations, we have modelled the formation of imprinted merons and anti-merons in cobalt overlayers of different thickness (1-8 nm), stabilised by interfacial exchange with antiferromagnetic vortices in $\alpha$-Fe2O3. Structures similar to those observed experimentally could be obtained with reasonable exchange parameters, also in the presence of surface roughness. We produce simulated meron|antimeron images by magnetic force microscopy (MFM) and nitrogen-vacancy (N-V) centre microscopy, and established signatures of these topological structures in different experimental configurations. Comment: 11 pages, 7 figures, Published in Physical Review B, 26 February 2020
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7ee2e954c394e51f03d5643fad11e3f1 http://arxiv.org/abs/1912.07511 Zobrazit plný text záznamu