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Chemical resolution at ionic crystal surfaces using dynamic atomic force microscopy with metallic tips.

Teobaldi, G, Lämmle, K, Trevethan, T, Watkins, M, Schwarz, A, Wiesendanger, R and Shluger, AL (2011) Chemical resolution at ionic crystal surfaces using dynamic atomic force microscopy with metallic tips. Phys Rev Lett, 106 (21).

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Abstract

We demonstrate that well prepared and characterized Cr tips can provide atomic resolution on the bulk NaCl(001) surface with dynamic atomic force microscopy in the noncontact regime at relatively large tip-sample separations. At these conditions, the surface chemical structure can be resolved yet tip-surface instabilities are absent. Our calculations demonstrate that chemical identification is unambiguous, because the interaction is always largest above the anions. This conclusion is generally valid for other polar surfaces, and can thus provide a new practical route for straightforward interpretation of atomically resolved images.

Item Type: Article
Authors :
NameEmailORCID
Teobaldi, GUNSPECIFIEDUNSPECIFIED
Lämmle, KUNSPECIFIEDUNSPECIFIED
Trevethan, Tt.trevethan@surrey.ac.ukUNSPECIFIED
Watkins, MUNSPECIFIEDUNSPECIFIED
Schwarz, AUNSPECIFIEDUNSPECIFIED
Wiesendanger, RUNSPECIFIEDUNSPECIFIED
Shluger, ALUNSPECIFIEDUNSPECIFIED
Date : 27 May 2011
Identification Number : https://doi.org/10.1103/PhysRevLett.106.216102
Related URLs :
Depositing User : Symplectic Elements
Date Deposited : 17 May 2017 12:35
Last Modified : 17 May 2017 15:04
URI: http://epubs.surrey.ac.uk/id/eprint/835931

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