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How Much Force Does it Take to Move an Atom on a Surface?

Published online by Cambridge University Press:  14 March 2018

Stephen W. Carmichael
Stephen W. Carmichael*
Affiliation:
Mayo Clinic

Extract

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It was demonstrated 18 years ago that atoms could be manipulated, one at a time, on a surface. Yet only recently has the force required to move an atom been determined. Markus Ternes, Christopher Lutz, Cyrus Hirjibehedin, Franz Giessibl, and Andreas Heinrich, in a technical tour de force, have engineered a microscope that incorporates features of the scanning tunneling microscope (STM) and atomic force microscope (AFM) to accurately quantitate the lateral and vertical forces needed to move a single atom on a surface.

Type
Research Article
Information
Microscopy Today , Volume 16 , Issue 4 , July 2008 , pp. 3 - 5
Copyright
Copyright © Microscopy Society of America 2008

References

Note

2 Ternes, M., Lutz, C.P., Hirjibehedin, C.F., Giessbl, F.J., and Heinrich, A.J., The force needed to move an atom on a surface, Science 319:1066-1069, 2008. See also Perspectives article by O. Custance and S. Morita, How to move an atom, Science 319:1051-1052, 2008Google Scholar