Physics Colloquium, April 10, 2007
CANCELLED Spin Excitation Spectroscopy with the STM Don Eigler

IBM, Almaden Research Center

We have extended the spectroscopic abilities of the scanning tunneling microscope to include the measurement of spin-excitation spectra. Utilizing spin-excitation spectroscopy as our primary tool, we are now capable of extracting exchange coupling energies, anisotropy energies, and information on the spin configuration of nanometer-scale structures. What we learn from these experiments will hopefully allow us to engineer the "energy landscape" of a system of spins in order to achieve nanometer-scale binary logic circuits that operate using only the spin degree of freedom.
Work done in collaboration with Cyrus Hirjibehedin, Andreas Heinrich, Christopher Lutz, Jay Gupta, and Bruce Melior.

Dr. Eigler's Web Site

4:00 p.m., Physics Research Building (PRB), Room 1080

Reception at 3:45 p.m., Atrium, PRB