Control of the Metal Insulator Transition at Complex Oxide Heterointerfaces through Visible Light.
The coupling of the localized surface plasmon resonance of Au nanoparticles is utilized to deliver a visible light stimulus to control conduction at the LaAlO3 /SrTiO3 interface. A giant photoresponse and the controllable metal insulator transition are characterized at this heterointerface. This study paves a new route to optical control of the functionality at the heterointerfaces.
Advanced materials