X-ray photoemission study of Hg clusters on Hg(1-x)Cd(x)Te surfaces

Details X-ray photoemission study of Hg clusters on Hg(1-x)Cd(x)Te surfaces X-ray photoemission study of Hg clusters on Hg(1-x)Cd(x)Te surfaces

Aug 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988jvst....6.1204s&link_type=abstract

Journal of Vacuum Science and Technology B (ISSN 0734-211X), vol. 6, July-Aug. 1988, p. 1204-1207. DARPA-FNRS-supported research

Physics

3

Mercury (Metal), Mercury Cadmium Tellurides, Photoelectric Emission, X Ray Spectroscopy, Adsorption, Binding, Clumps, Coulomb Potential, Molecular Beam Epitaxy, Superlattices

Scientific paper

Hg(1-x)Cd(x)Te (111)B surfaces have been studied with X-ray photoelectron spectroscopy (XPS). A surface shift is deduced from a careful analysis of Te 4d core-level spectra. The presence of small Hg clusters on these surfaces is observed, and the size is estimated from the XPS data (R = 5-20 A). The positive binding energy shift for these clusters agrees very well with the calculated Coulomb energy due to the positive charge which appears on the clusters during the photoemission process. The origin of these clusters is briefly discussed.

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