Multiple Charge States of Ag Atoms on Ultrathin NaCl Films

F. E. Olsson, S. Paavilainen, M. Persson, J. Repp, and G. Meyer
Phys. Rev. Lett. 98, 176803 – Published 25 April 2007

Abstract

A combined study using density functional calculations and scanning tunneling microscopy experiments shows that individual silver adatoms on ultrathin sodium chloride films on copper surfaces are stable in three different charge states—neutral, negatively, and positively charged adatoms. The charge states of the individual adatoms were manipulated by voltage pulses. The key parameters determining the stability of various charge states are identified and discussed within a simple model.

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  • Received 15 December 2006

DOI:https://doi.org/10.1103/PhysRevLett.98.176803

©2007 American Physical Society

Authors & Affiliations

F. E. Olsson1, S. Paavilainen2, M. Persson3, J. Repp4,5, and G. Meyer5

  • 1Department of Applied Physics, Chalmers University of Technology, 41296 Göteborg, Sweden
  • 2Institute of Physics, Tampere University of Technology, 33720 Tampere, Finland
  • 3Surface Science Research Centre and Department of Chemistry, The University of Liverpool, Liverpool L69 3BX, United Kingdom
  • 4Institute of Experimental and Applied Physics, University of Regensburg, 93040 Regensburg, Germany
  • 5IBM Research, Zurich Research Laboratory, 8803 Rüschlikon, Switzerland

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Issue

Vol. 98, Iss. 17 — 27 April 2007

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