期刊
PHYSICAL REVIEW B
卷 81, 期 22, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.81.220409
关键词
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资金
- Japan Society for the Promotion of Science [20540334]
- U.S. Department of Energy [DE-FG02-88ER45372, DE-FG02-06ER46328]
- Grants-in-Aid for Scientific Research [20540334] Funding Source: KAKEN
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.
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