Unambiguous Interpretation of Atomically Resolved Force Microscopy Images of an Insulator

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© 2001 American Physical Society (APS). This is the accepted version of the following article: Foster, Adam S. ; Barth, C. ; Shluger, A. L. ; Reichling, M.. 2001. Unambiguous Interpretation of Atomically Resolved Force Microscopy Images of an Insulator. Physical Review Letters. Volume 86, Issue 11. 2373-2376. ISSN 0031-9007 (printed). DOI: 10.1103/physrevlett.86.2373, which has been published in final form at http://journals.aps.org/prl/pdf/10.1103/PhysRevLett.86.2373.

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Journal Title

Journal ISSN

Volume Title

School of Science | A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

Date

2001

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Mcode

Degree programme

Language

en

Pages

2373-2376

Series

Physical Review Letters, Volume 86, Issue 11

Abstract

The (111) surface of CaF2 was imaged with dynamic mode scanning force microscopy and modeledusing atomistic simulation. Both experiment and theory showed a clear triangular contrast pattern in images, and theory demonstrated that the contrast pattern is due to the interaction of a positive electrostatic potential tip with fluorine ions in the two topmost surface layers. We find a good agreement of position and relative height of scan line features between theory and experiment and thus establish for the first time an unambiguous identification of sublattices of an insulator imaged by force microscopy.

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Keywords

AFM, simulation, insulators

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Citation

Foster, Adam S. & Barth, C. & Shluger, A. L. & Reichling, M.. 2001. Unambiguous Interpretation of Atomically Resolved Force Microscopy Images of an Insulator. Physical Review Letters. Volume 86, Issue 11. 2373-2376. ISSN 0031-9007 (printed). DOI: 10.1103/physrevlett.86.2373.