Direct measurement of the attractive interaction forces on F0 color centers on MgO(001) by dynamic force microscopy.
basic_science · Level V
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- Record sourced from PubMed, PMID 20438103.
- Also identified by DOI 10.1021/nn100443n.
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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 (F(0)) 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.