Molecular impurities at the NaCl(100) surface observed by scanning force microscopy

Bennewitz, R. and Bammerlin, M. and Loppacher, C. and Guggisberg, M. and Eng, L. and Meyer, E. and Guntherodt, H. J. and An, C. P. and Luty, F.. (1999) Molecular impurities at the NaCl(100) surface observed by scanning force microscopy. Radiation effects and defects in solids, Vol. 150, H. 1-4. pp. 321-326.

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Official URL: http://edoc.unibas.ch/dok/A5262157

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We have studied cleavage faces of NaCl crystals containing (OCN)(-) molecules with a scanning force microscope in ultra-high vacuum. The dopant content in the crystals was determined using infrared spectroscopy. The molecular impurities appear as nm-sized elevations in the scanning force micrographs. Their position at cleavage steps is discussed in terms of both diffusion and step formation during cleavage. Although the atomic periodicity of the NaCl lattice is imaged, high-resolution investigations of impurities are limited by a convolution between the tip apex and the elongated molecules sticking out of the surface.
Faculties and Departments:05 Faculty of Science > Departement Physik > Physik > Nanomechanik (Meyer)
UniBasel Contributors:Meyer, Ernst
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:Gordon and Breach Science
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:22 Mar 2012 14:26
Deposited On:22 Mar 2012 13:55

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