Magnetic properties of FeV/MgO-based structures

Mathias Bersweiler, Kyota Watanabe, Hideo Sato, Fumihiro Matsukura, Hideo Ohno

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

We investigate the magnetic properties of Fe100-xVx/MgO-based structures with a V composition x up to 20 at. %. The introduction of V results in the reduction of spontaneous magnetization, the damping constant, and both interfacial and bulk perpendicular magnetic anisotropies. However, the insertion of thin Fe layers at the FeV/MgO interfaces results in an effective perpendicular magnetic anisotropy as large as that of Fe/MgO. The result shows potential for lowering the threshold current for magnetization switching in FeV/MgO-based magnetic tunnel junctions, while maintaining a thermal stability factor similar to that in Fe/MgO-based junctions.

Original languageEnglish
Article number083001
JournalApplied Physics Express
Volume10
Issue number8
DOIs
Publication statusPublished - 2017 Aug

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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