Voltage control of magnetic single domains in Ni discs on ferroelectric BaTiO3

M. Ghidini, B. Zhu, R. Mansell, R. Pellicelli, A. Lesaine, X. Moya, S. Crossley, B. Nair, F. Maccherozzi, C. H.W. Barnes, R. P. Cowburn, S. S. Dhesi, N. D. Mathur

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6 Citations (Scopus)

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.

Original languageEnglish
Article number224007
Pages (from-to)1-6
JournalJournal of Physics D: Applied Physics
Volume51
Issue number22
DOIs
Publication statusPublished - 11 May 2018
MoE publication typeA1 Journal article-refereed

Keywords

  • ferroelectric
  • magnetic
  • magnetoelectric

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    Ghidini, M., Zhu, B., Mansell, R., Pellicelli, R., Lesaine, A., Moya, X., ... Mathur, N. D. (2018). Voltage control of magnetic single domains in Ni discs on ferroelectric BaTiO3. Journal of Physics D: Applied Physics, 51(22), 1-6. [224007]. https://doi.org/10.1088/1361-6463/aabf77