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High-resolution core-level study of the Ca/Si(1 1 1)-(2×1) surface
Graduate School of Advanced Integration Science, Chiba University, Chiba 263-8522, Japan.
Department of Physics, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan.
Linköping University, The Institute of Technology. Linköping University, Department of Physics, Chemistry and Biology, Surface and Semiconductor Physics.
Linköping University, The Institute of Technology. Linköping University, Department of Physics, Chemistry and Biology, Surface and Semiconductor Physics.
2003 (English)In: Thin Solid Films, ISSN 0040-6090, E-ISSN 1879-2731, Vol. 428, no 1-2, 115-118 p.Article in journal (Refereed) Published
Abstract [en]

We have investigated the geometric structure of the Ca/Si(1 1 1)-(2×1) surface using low-energy electron diffraction (LEED) and high-resolution core-level photoelectron spectroscopy. A clear (2×1) periodicity was observed in LEED after annealing the (7×1) phase formed at room temperature in LEED. In the Si 2p core-level spectra, three surface components were observed. By considering the energy shift and intensity of each surface component and the Ca 3p core-levels of the two phases, we regard the (2×1) phase to be formed by p-bonded Seiwatz Si chains with a Ca coverage of 0.5 ML. © 2002 Elsevier Science B.V. All rights reserved.

Place, publisher, year, edition, pages
2003. Vol. 428, no 1-2, 115-118 p.
Keyword [en]
Low-energy electron diffraction, Photoelectron spectroscopy, Surface structure
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-46697DOI: 10.1016/S0040-6090(02)01232-4OAI: oai:DiVA.org:liu-46697DiVA: diva2:267593
Conference
Thin Solid Films
Available from: 2009-10-11 Created: 2009-10-11 Last updated: 2017-12-13

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Zhang, HanminUhrberg, Roger

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