Predicted Magnetoelectric Effect inMultilayers: Ferroelectric Control of Magnetism
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- 25 July 2006
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 97 (4), 047201
- https://doi.org/10.1103/physrevlett.97.047201
Abstract
An unexplored physical mechanism which produces a magnetoelectric effect in ferroelectric-ferromagnetic multilayers is studied based on first-principles calculations. Its origin is a change in bonding at the ferroelectric-ferromagnet interface that alters the interface magnetization when the electric polarization reverses. Using multilayers as a representative model, we show a sizable difference in magnetic moments of Fe and Ti atoms at the two interfaces dissimilar by the orientation of the local electric dipole moments. The predicted magnetoelectric effect opens a new direction to control magnetic properties of thin-film layered structures by electric fields.
Keywords
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