Nonlocal desorption of chlorobenzene molecules from the Si(111)-(7×7) surface by charge injection from the tip of a scanning tunneling microscope: remote control of atomic manipulation

Reference:

Sloan, P. A., Sakulsermsuk, S. and Palmer, R. E., 2010. Nonlocal desorption of chlorobenzene molecules from the Si(111)-(7×7) surface by charge injection from the tip of a scanning tunneling microscope: remote control of atomic manipulation. Physical Review Letters, 105 (4), 048301.

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Official URL:

http://dx.doi.org/10.1103/PhysRevLett.105.048301

Abstract

We report the nonlocal desorption of chlorobenzene molecules from the Si(111Þ_-7x7 surface by charge injection from the laterally distant tip of a scanning tunneling microscope and demonstrate remote control of the manipulation process by precise selection of the atomic site for injection. Nonlocal desorption decays exponentially as a function of radial distance (decay length 100 A) from the injection site. Electron injection at corner-hole and faulted middle adatoms sites couples preferentially to the desorption of distant adsorbate molecules. Molecules on the faulted half of the unit cell desorb with higher probability than those on the unfaulted half.

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