Article,

Direct Measurement of the Attractive Interaction Forces on F0 Color Centers on MgO(001) by Dynamic Force Microscopy

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ACS Nano, 4 (5): 2510-2514 (2010)PMID: 20438103.
DOI: 10.1021/nn100443n

Abstract

Defect sites on oxide surfaces play a dominant role in surface chemistry. The direct atomistic study of these sites is important but very difficult. We have mimicked the adsorbate−defect interaction by a dynamic force microscope tip measuring the interaction with a color center (F0) on the MgO(001) surface. The experimental findings, complemented by density functional theory calculations, show a highly attractive adsorbate−defect interaction and a charge transfer at a critical distance.

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