Ferroelectric Control of the Conduction at the LaAlO3/SrTiO3 Heterointerface
- 13 May 2013
- journal article
- research article
- Published by Wiley in Advanced Materials
- Vol. 25 (24), 3357-3364
- https://doi.org/10.1002/adma.201300757
Abstract
Modulation of band bending at a complex oxide heterointerface by a ferroelectric layer is demonstrated. The as-grown polarization (Pup) leads to charge depletion and consequently low conduction. Switching the polarization direction (Pdown) results in charge accumulation and enhances the conduction at the interface. The metal–insulator transition at a conducting polar/nonpolar oxide heterointerface can be controlled by ferroelectric doping.Keywords
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