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Contact: Andy Freeberg
afreeberg@slac.stanford.edu
650-926-4359
DOE/SLAC National Accelerator Laboratory

Designer Electrons

Caption: Pictured is a version of molecular graphene in which the electrons are tuned to respond as if they're experiencing a very high magnetic field (red areas) when none is present. Scientists from Stanford and SLAC National Accelerator Laboratory calculated the positions where carbon atoms in graphene should be to make its electrons believe they were being exposed to a magnetic field of 60 Tesla, more than 30 percent higher than the strongest continuous magnetic field ever achieved on Earth (a 1 Tesla magnetic field is about 20,000 times stronger than the Earth's). The researchers then used a scanning tunneling microscope to place carbon monoxide molecules (black circles) at precisely those positions. The electrons responded by behaving exactly as expected -- as if they were exposed to a real field.

Credit: Manoharan Lab, Stanford/SLAC

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Related news release: Molecular graphene heralds new era of 'designer electrons'


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