Adsorbate dynamics induced by STM

Microscopic models to describe adsorbate dynamics induced by STM, e.g. the dynamics of STM-induced desorption of CO from Cu(111) and the dynamics of S TM-induced rotation of acetylene on Cu(100) are presented. In these models, the relation between the change of the electronic state caused by an elect ron tunneling from an STM tip and the transition of the vibrational state f or the molecular/intramolecular motion is taken into account from a microsc opic point of view. Calculated probabilities for inducing desorption and ro tation in these models agree with recent experimental results. (C) 2001 Els evier Science B.V. All rights reserved.