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

Research output: Contribution to journalArticleScientificpeer-review

Researchers

  • M. Ghidini
  • B. Zhu
  • Rhodri 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

Research units

  • University of Parma
  • Diamond Light Source
  • University of Cambridge
  • Istituto d'Istruzione Superiore A. Zanelli

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.

Details

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

    Research areas

  • ferroelectric, magnetic, magnetoelectric

ID: 32578612