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Tunable magnetoresistance devices based on multiferroic heterostructures

  • Ming Liu
  • , Ogheneyunume Obi
  • , Jing Lou
  • , Shandong Li
  • , Xing Xing
  • , Guomin Yang
  • , Nian X. Sun
  • Northeastern University
  • Argonne National Laboratory
  • Fujian Normal University

Research output: Contribution to journalArticlepeer-review

27 Scopus citations

Abstract

Surface-effect induced strong magnetoelectric (ME) coupling was investigated in ultrathin Ni80Fe20/PZN-PT (lead zinc niobate-lead titanate) multiferroic heterostructures. Giant electric field (E-field) tuning of the magnetic anisotropy, ferromagnetic resonance field, coercive field and anisotropic magnetoresistance were demonstrated through strain mediated ME coupling in 10 nm thick Ni80Fe20/PZN-PT multiferroic heterostructures. E-field dynamic modulation of magnetoresistance was also displayed. These provide great opportunities for electrostatic tunable MR devices.

Original languageEnglish
Article number07D913
JournalJournal of Applied Physics
Volume109
Issue number7
DOIs
StatePublished - 1 Apr 2011
Externally publishedYes

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