High-resolution core-level study of the Ca/Si(1 1 1)-(2×1) surface
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
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.
Low-energy electron diffraction, Photoelectron spectroscopy, Surface structure
Engineering and Technology
IdentifiersURN: urn:nbn:se:liu:diva-46697DOI: 10.1016/S0040-6090(02)01232-4OAI: oai:DiVA.org:liu-46697DiVA: diva2:267593
Thin Solid Films