Fauster T (1995)
Publication Status: Published
Publication Type: Journal article
Publication year: 1995
Publisher: Elsevier
Book Volume: 331
Pages Range: 731-735
DOI: 10.1016/0039-6028(95)00249-9
Image states are located a few angstroms in front of metal surfaces and constitute a highly sensitive probe of surface properties. With high-resolution two-photon photoemission the image states were measured during the growth of ultrathin epitaxial films of Ag, Au, and Co on Cu(111) at room temperature. For Ag on Cu(111) the image state of the substrate is observed up to the coverage of one monolayer (ML) as expected for a layer-by-layer growth. The observation of an unshifted Ag image state in the submonolayer regime indicates Ag islands of more than 100 Angstrom diameter. For Au on Cu(111) the image state of the substrate is observed for coverages up to 1.7 ML. The simultaneous observation of image states from 1 and 2 ML high islands as well as from the clean copper surface is a clear proof for the growth of three-dimensional islands. For Co on Cu(111) a similar growth mode is found. Annealing experiments reveal a segregation of 1 ML of Cu onto the Co films at temperatures between 100 and 200 degrees C depending on the Co coverage.
APA:
Fauster, T. (1995). GROWTH OF AG, AN, AND CO ON CU(111) STUDIED BY HIGH-RESOLUTION SPECTROSCOPY OF IMAGE STATES. Surface Science, 331, 731-735. https://doi.org/10.1016/0039-6028(95)00249-9
MLA:
Fauster, Thomas. "GROWTH OF AG, AN, AND CO ON CU(111) STUDIED BY HIGH-RESOLUTION SPECTROSCOPY OF IMAGE STATES." Surface Science 331 (1995): 731-735.
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