Oxide nanoelectronics on demand.
Electronic confinement at nanoscale dimensions remains a central means of science and technology. We demonstrate nanoscale lateral confinement of a quasi-two-dimensional electron gas at a lanthanum aluminate-strontium titanate interface. Control of this confinement using an atomic force microscope lithography technique enabled us to create tunnel junctions and field-effect transistors with characteristic dimensions as small as 2 nanometers. These electronic devices can be modified or erased without the need for complex lithographic procedures. Our on-demand nanoelectronics fabrication platform has the potential for widespread technological application.
Cen
Cheng
C
Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, PA 15260, USA.
Thiel
Stefan
S
Mannhart
Jochen
J
Levy
Jeremy
J