University of Minnesota
School of Physics & Astronomy

Physics and Astronomy Colloquium

Wednesday, November 18th 2009
3:35 pm:
Speaker: Jeremy Levy, University of Pittsburgh
Subject: Oxide Nanoelectronics
Refreshments served in Room 216 Physics after colloquium

Electronic confinement at nanoscale dimensions remains a central means of science and technology. In this talk, I will describe a method for producing extreme nanoscale electronic confinement at the interface between two normally insulating oxides, LaAlO3 and SrTiO3. Using a conducting atomic-force-microscope probe, we can create nanoscale conducting islands, nanowires, tunnel junctions and field-effect transistors, with spatial dimensions comparable to the diameter of a single-wall carbon nanotube (~2 nm). These structures are created in ambient conditions at room temperature, and can be erased and rewritten repeatedly. This new, on-demand nanoelectronics platform has the potential for widespread scientific and technological exploitation.

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