REELS measurements on a CdTe(1 0 0) surface
Dröge H, Fleszar A, Steinrück HP (1998)
Publication Type: Journal article, Original article
Publication year: 1998
Journal
Original Authors: Dröge H., Fleszar A., Steinrück H.-P.
Publisher: Elsevier
Pages Range: 208-212
URI: https://www.scopus.com/record/display.uri?eid=2-s2.0-11544358920&origin=inward
Abstract
The (1 0 0) surface of CdTe has been studied by reflection electron energy loss spectroscopy (REELS). The sample was prepared in situ in our UHV system and shows a c (2×2) reconstruction. The angle resolved REELS measurements for primary energies between 30 and 100 eV show distinct losses between 2 and 15eV that are attributed to interband transitions, d-band transitions as well as surface and bulk plasmons. The experimental investigations are accompanied by ab initio calculations (LDA/RPA) for the bulk loss function -Im(1/ε) of CdTe. From these calculations the surface loss function -Im(1/(ε + 1)) is determined. The dominant loss feature at 8.7 eV in the experimental spectra is assigned to a surface plasmon. Its energetic position is ∼ 1 eV below the maximum of the calculated surface loss function and earlier measurements for the nonpolar CdTe(1 1 0) surface. This shift is attributed to the reconstruction of the CdTe(1 0 0) surface that leads to a reduced surface charge density. © 1998 Elsevier Science B.V. All rights reserved.
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Germany (DE)How to cite
APA:
Dröge, H., Fleszar, A., & Steinrück, H.-P. (1998). REELS measurements on a CdTe(1 0 0) surface. Journal of Crystal Growth, 208-212.
MLA:
Dröge, H., A. Fleszar, and Hans-Peter Steinrück. "REELS measurements on a CdTe(1 0 0) surface." Journal of Crystal Growth (1998): 208-212.
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