Please use this identifier to cite or link to this item: https://doi.org/10.1016/S0039-6028(99)00884-5
Title: Scanning tunnelling microscopy study of palladium on stepped Cu(210) surfaces: chemical contrast and room-temperature tip-induced motion
Authors: Wee, A.T.S. 
Dixon, R.A.
Egdell, R.G.
Foord, J.S.
Fishlock, T.W.
Pethica, J.B.
Issue Date: 10-Nov-1999
Source: Wee, A.T.S., Dixon, R.A., Egdell, R.G., Foord, J.S., Fishlock, T.W., Pethica, J.B. (1999-11-10). Scanning tunnelling microscopy study of palladium on stepped Cu(210) surfaces: chemical contrast and room-temperature tip-induced motion. Surface Science 442 (1) : 55-64. ScholarBank@NUS Repository. https://doi.org/10.1016/S0039-6028(99)00884-5
Abstract: The chemical contrast and tip-induced motion of palladium on stepped Cu(210) surfaces at room temperature have been studied by scanning tunnelling microscopy (STM). Contrast inversion is shown to be useful for chemical-sensitive imaging and features such as fringing can be resolved. Step edges and kinks are shown to be thermodynamically more stable palladium adsorption sites. Tip-induced motion of palladium adatoms on Cu(210) at 300 K has been demonstrated with a threshold gap resistance of 20-50 MΩ. Annealing the palladium-covered surface to 600-700 K results in the ejection of copper atoms to form crystalline copper islands which lie across the substrate steps with their [110] axes aligned to the [001] substrate axis.
Source Title: Surface Science
URI: http://scholarbank.nus.edu.sg/handle/10635/97862
ISSN: 00396028
DOI: 10.1016/S0039-6028(99)00884-5
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