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Electronic structure of SnO2(110)-4 x 1 and sputtered SnO2(110) revealed by resonant photoemission
KTH, Superseded Departments, Materials Science and Engineering.
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2002 (English)In: Surface Science, ISSN 0039-6028, E-ISSN 1879-2758, Vol. 499, no 1, 85-93 p.Article in journal (Refereed) Published
Abstract [en]

The surface properties of SnO2(1 1 0)-4 x 1 and sputtered SnO2(1 1 0) were studied comparatively by resonant photoemission of the valence band states in a photon energy range of 60-130 eV. Resonating energetic levels could be observed on the 4 x I reconstructed surface and the resonance behavior could be switched off by sputter treatment. Additionally, the Sn 4d core-levels were recorded at two photon energies in order to allow a statement about the surface's stoichiometry. A tentative explanation of the observed resonance and of the discrepancy between ordered and sputtered surface is given with regard to recent STM results on similar prepared surfaces.

Place, publisher, year, edition, pages
2002. Vol. 499, no 1, 85-93 p.
Keyword [en]
low energy electron diffraction (LEED), synchrotron radiation photoelectron spectroscopy surface electronic phenomena (work function, surface potential, surface states, etc.), tin oxides, low index single crystal surfaces, surface defects, single-crystals, surface, sno2, reconstructions, states, oxide, 4x1
URN: urn:nbn:se:kth:diva-21376ISI: 000174340800014OAI: diva2:340074
QC 20100525Available from: 2010-08-10 Created: 2010-08-10Bibliographically approved

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Göthelid, Mats
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