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Philosophical Magazine Volume 86, 2006 - Issue 6-8: Proceedings of the 9th International Conference on Quasicrystals, 22–26 May 2005, Part 2 Guest Editors: Cynthia J. Jenks, Daniel J. Sordelet and Patricia Thiel
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Original Articles

Adsorption of benzene on the five-fold surface of the i-Al70Pd21Mn9 quasicrystal

J. T. Hoeft¶ Department of Physics and Surface Science Research Centre, University of Liverpool, Liverpool L69 3BX, UKView further author information
,
J. Ledieu‖ Department of Physics and Surface Science Research Centre, University of Liverpool, Liverpool L69 3BX, UKView further author information
,
S. Haq Department of Physics and Surface Science Research Centre, University of Liverpool, Liverpool L69 3BX, UK
,
T. A. Lograsso Ames Laboratory, Iowa State University, Ames, IA 50011, USA
,
A. R. Ross Ames Laboratory, Iowa State University, Ames, IA 50011, USA
&
R. McGrath Department of Physics and Surface Science Research Centre, University of Liverpool, Liverpool L69 3BX, UKCorrespondence[email protected]
Pages 869-874 | Received 14 May 2005, Accepted 05 Jul 2005, Published online: 19 Aug 2006
 
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Abstract

The adsorption behaviour of benzene (C6H6) on the five-fold surface of the icosahedral Al70Pd21Mn9 quasicrystal has been investigated. Reflection absorption infrared spectroscopy (RAIRS) data taken at a temperature of 92 K indicate molecular adsorption. The adsorption geometry of the molecules is found to change from parallel to the surface to oblique geometries as the dose is increased from monolayer to multilayer coverages. Scanning tunnelling microscopy (STM) images show that the molecules adsorb in a disordered fashion. The adsorbate layer is found to completely desorb at 153 K leaving the substrate unchanged.

Acknowledgements

We acknowledge the UK Engineering and Physical Science Research Council (grant number GR/S19080/01) and the European Union Marie Curie Development Fund (award HPMD-CT-2001-00093) for funding this work.

Notes

¶Present address: Universitat Hamburg, Institut fiir Experimentalphysik, Luruper Chaussee 149, D-22761 Hamburg, Germany.

‖Present address: LSG2M, CNRS UMR 7584, Ecole des Mines, Parc de Saurupt, 54042 Nancy Cedex, France.

Additional information

Notes on contributors

J. T. HoeftFootnote

¶Present address: Universitat Hamburg, Institut fiir Experimentalphysik, Luruper Chaussee 149, D-22761 Hamburg, Germany.

J. LedieuFootnote‖

‖Present address: LSG2M, CNRS UMR 7584, Ecole des Mines, Parc de Saurupt, 54042 Nancy Cedex, France.

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