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Nature 454, 283-284 (17 July 2008) | doi:10.1038/454283a; Published online 16 July 2008
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Microscopy: Spot the atom
John Silcox1
Abstract
Heavy atoms can be detected by electron microscopy, but lighter atoms, such as carbon or hydrogen, are more elusive. These bashful atoms can now be pinpointed if they are adsorbed to a single layer of graphite.
Visualizing individual atoms is hard, not least because free atoms move rapidly at room temperature. The problem is finding a way to keep them motionless for long enough to observe them, without the resulting image being swamped by images of surrounding atoms.
- John Silcox is in the School of Applied and Engineering Physics, Clark Hall, Cornell University, Ithaca, New York 14853, USA.
Email: js97@cornell.edu
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