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SUMMARY: Spin Excitation Spectroscopy with the Scanning Tunneling Microsco
 pe - Don Eigler\, IBM Almaden Research Center
DTSTART:20071016T010000Z
DTEND:20071016T020000Z
UID:TALK8775@talks.cam.ac.uk
CONTACT:Dr. Oliver Inderwildi
DESCRIPTION:We have extended the spectroscopic abilities of the scanning t
 unneling microscope to include the measurement of spin-excitation spectra.
  Utilizing spin-excitation spectroscopy as our primary tool\, we are now c
 apable of extracting exchange coupling energies\, anisotropy energies\, an
 d information on the spin configuration of nanometer-scale structures. Wha
 t 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 fre
 edom.\n\n*Dr. Eigler demonstrated for the first time the ability to build 
 structures at the atomic level by spelling out "I-B-M" with individual xen
 on atoms.*\nSince then\, Dr. Eigler has led an active group of scientists 
 in a series of experiments aimed at extending basic knowledge about the ph
 ysics of atomic-scale structures and exploring the potential for atomic-sc
 ale logic and data-storage technologies using STM. \n
LOCATION:Dept. of Chemistry\, Pfizer Lecture Theater
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