Physics – Condensed Matter
Scientific paper
1993-12-02
Physics
Condensed Matter
13 pages (including 2 figures in separate LaTeX-files with ps-\specials), REVTEX 3.0
Scientific paper
10.1103/PhysRevLett.72.2919
We suggest a simple model to describe the reversible field-induced transfer of a single Xe-atom in a scanning tunneling microscope, --- the Eigler-switch. The inelasticly tunneling electrons give rise to fluctuating forces on and damping of the Xe-atom resulting in an effective current dependent temperature. The rate of transfer is controlled by the well-known Arrhenius law with this effective temperature. The directionality of atom transfer is discussed, and the importance of use of non-equlibrium-formalism for the electronic environment is emphasized. The theory constitutes a formal derivation and generalization of the so-called Desorption Induced by Multiple Electron Transitions (DIMET) point of view.
Brandbyge Mads
Hedegard Per
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