Ferroelectric Control of Magnetism in Ultrathin HfO\Co\Pt Layers.

The recent demonstration of ferroelectricity in ultrathin HfO has kickstarted a new wave of research into this material. HfO in the orthorhombic phase can be considered the first and only truly nanoscale ferroelectric material that is compatible with silicon-based nanoelectronics applications. In this article, we demonstrate the ferroelectric control of the magnetic properties of cobalt deposited on ultrathin aluminum-doped, atomic layer deposition-grown HfO ( = 6.