Contact: Dr. Andreas Battenberg
Technische Universitaet Muenchen
Caption: Physicists at the Technische Universitaet Muenchen have created a nano switch based on a single porphyrin ring. If one of two protons from the inside of the ring is removed, the remaining proton can take on any one of four positions, initiated by a single tunnel electron from the tip of a scanning tunneling microscope.
Credit: Knud Seufert / Technische Universitaet Muenchen
Usage Restrictions: None
Related news release: The smallest conceivable switch