Voltage control of magnetic single domains in Ni discs on ferroelectric BaTiO3
Accepted version
Peer-reviewed
Repository URI
Repository DOI
Change log
Authors
Ghidini, M https://orcid.org/0000-0002-1905-2455
Mansell, R https://orcid.org/0000-0002-6026-0731
Pellicelli, R
Lesaine, A
Abstract
For 1 μm diameter Ni discs on a BaTiO3 substrate, the local magnetization direction is determined by ferroelectric domain orientation as a consequence of growth strain, such that single domain discs lie on single ferroelectric domains. On applying a voltage across the substrate, ferroelectric domain switching yields non volatile magnetization rotations of 90°, while piezoelectric effects that are small and continuous yield non volatile magnetization reversals that are non-deterministic. This demonstration of magnetization reversal without ferroelectric domain switching implies reduced fatigue, and therefore represents a step towards applications.
Description
Keywords
magnetoelectric, magnetic, ferroelectric
Journal Title
Journal of Physics D: Applied Physics
Conference Name
Journal ISSN
0022-3727
1361-6463
1361-6463
Volume Title
51
Publisher
IOP Publishing
Publisher DOI
Sponsorship
Leverhulme Trust (F/09 154/E)