Site-specific force-distance characteristics on NaCl(001): Measurements versus atomistic simulations

M. A. Lantz, R. Hoffmann, A. S. Foster, A. Baratoff, H. J. Hug, H. R. Hidber, and H.-J. Güntherodt

Phys. Rev. B 74, 245426 – Published 22 December 2006; Erratum Phys. Rev. B 78, 039901 (2008)

Abstract

A scanning force microscope was used to measure the frequency shift above various atomic sites on a NaCl(001) surface at $7 K$ . The data was converted to force and compared to the results of atomistic simulations using model NaCl and MgO tips. We find that the NaCl tip demonstrates better agreement in the magnitude of the forces in experiments, supporting the observation that the tip first came into contact with the sample. Using the MgO tip as a model of the originally oxidized silicon tip, we further demonstrate a possible mechanism for tip contamination at low temperatures.

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Received 2 June 2006

DOI:https://doi.org/10.1103/PhysRevB.74.245426

Erratum

Erratum: Site-specific force-distance characteristics on NaCl(001): Measurements versus atomistic simulations [Phys. Rev. B 74, 245426 (2006)]

M. A. Lantz, R. Hoffmann, A. S. Foster, A. Baratoff, H. J. Hug, and H.-J. Güntherodt

Phys. Rev. B 78, 039901 (2008)

Authors & Affiliations

M. A. Lantz^1,*, R. Hoffmann^1,†, A. S. Foster², A. Baratoff^1,3, H. J. Hug^1,3,‡, H. R. Hidber¹, and H.-J. Güntherodt^1,3

¹Institute of Physics, University of Basel, Klingelbergstrasse 82, CH-4056 Basel, Switzerland
²Laboratory of Physics, Helsinki University of Technology, P.O. Box 1100, 02015 HUT, Finland
³National Center of Competence in Research (NCCR) on Nanoscale Science, University of Basel, Klingelbergstrasse 82, CH-4056 Basel, Switzerland

^*Present address: IBM Research, Zürich Research Laboratory, Säumerstrasse 4, CH-8803 Rüschlikon, Switzerland.
^†Present address: Physikalisches Institut and DFG-Center for Functional Nanostructures (CFN), Universität Karlsruhe, D-76128 Karlsruhe, Germany.
^‡Present address: Swiss Federal Laboratory for Materials Testing and Research, CH-8600 Dübendorf, Switzerland.

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Issue

Vol. 74, Iss. 24 — 15 December 2006

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