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Local structure of OH adsorbed on the Ge(0 0 1)(2 × 1) surface using scanned-energy mode photoelectron diffraction |
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| Authors: | A Koebbel M Polcik D R Lloyd I T McGovern O Schaff R Lindsay A J Patchett A M Bradshaw D P Woodruff |
| Institution: | a Department of Chemistry, Trinity College Dublin, Dublin 2, Ireland b Fritz-Haber-Institut der Max-Plank-Gesellschaft, Faradayweg 4-6, 14195, Berlin, Germany c Department of Physics, Trinity College Dublin, Dublin 2, Ireland d Department of Physics, University of Warwick, Coventry CV4 7AL, UK e Institute of Physics of the Czech Acad. Sci., Cukrovarnicka 10, 16253, Praha 6, Czech Republic |
| Abstract: | The local geometry of OH fragments adsorbed on the Ge(0 0 1)(2 × 1) surface has been examined using O 1s scanned energy mode photoelectron diffraction. These fragments were obtained by the dissociative reaction of the clean surface with H2O. The Ge–O bond length is found to be 1.76 ± 0.02 Å and the Ge–O bond angle to be 15° ± 2° relative to the surface normal. Some information about the positions of the Ge dimer atoms has also been obtained. |
| Keywords: | Photoelectron diffraction Surface structure morphology roughness and topography Germanium Water |
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