Published in
Royal Society of Chemistry, Nanoscale, 9(12), p. 5652-5657, 2020
DOI: 10.1039/c9nr08672b
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Voltage-driven annihilation and creation of magnetic vortices in Ni discs
Journal article published in 2020 by
M. Ghidini 
,
R. Mansell ,
R. Pellicelli,
D. Pesquera,
B. Nair,
X. Moya,
S. Farokhipoor,
F. Maccherozzi,
C. H. W. Barnes,
R. P. Cowburn,
S. S. Dhesi,
N. D. Mathur
,
R. Mansell ,
R. Pellicelli,
D. Pesquera,
B. Nair,
X. Moya,
S. Farokhipoor,
F. Maccherozzi,
C. H. W. Barnes,
R. P. Cowburn,
S. S. Dhesi,
N. D. Mathur
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Abstract
Using PEEM to image ferromagnetism in polycrystalline Ni disks, and ferroelectricity in their single-crystal BaTiO3 substrates, we find that voltage-driven 90° ferroelectric domain switching serves to annihilate magnetic vortices via uniaxial compressive strain.