Role of an interfacial FeO layer in the electric-field-driven switching of magnetocrystalline anisotropy at the Fe/MgO interface

Kohji Nakamura, Toru Akiyama, Tomonori Ito, M. Weinert, Arthur J Freeman

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119 Citations (Scopus)

Abstract

The electric-field-induced switching of magnetocrystalline anisotropy (MCA) between in-plane and out-of-plane orientations is investigated by first-principles calculations for the prototypical Fe on MgO(001) system. Our results predict that an ideal abrupt Fe/MgO interface gives rise to a large out-of-plane MCA due to weak Fe-O hybridization at the interface, but the MCA switching by an applied electric field is found to be difficult to achieve. Instead, the existence of an interfacial FeO layer plays a key role in demonstrating the MCA switching that accompanies an electric-field-induced displacement of Fe atoms on the interfacial FeO layer.

Original languageEnglish
Article number220409
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume81
Issue number22
DOIs
Publication statusPublished - Jun 22 2010

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Magnetocrystalline anisotropy
Electric fields
anisotropy
electric fields
Atoms
atoms

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

Cite this

Role of an interfacial FeO layer in the electric-field-driven switching of magnetocrystalline anisotropy at the Fe/MgO interface. / Nakamura, Kohji; Akiyama, Toru; Ito, Tomonori; Weinert, M.; Freeman, Arthur J.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 81, No. 22, 220409, 22.06.2010.

Research output: Contribution to journalArticle

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