Greber Osterwalder
Fakultäten » Mathematisch-naturwissenschaftliche Fakultät » Physik-Institut » Festkörperpysik » Prof. Dr. Juerg Osterwalder » Greber Osterwalder
Completed research project
| Title / Titel | Nanostructures and Molecular Layers | ||||
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| Abstract (PDF, 14 KB) | |||||
| Summary / Zusammenfassung | In the surface physics laboratory we study well-defined surfaces of solid materials as well as adsorbed atomic and molecular monolayers and ultrathin films, prepared under ultrahigh-vacuum (UHV) conditions. In order to obtain detailed information on the geometric arrangement of the atoms within the first few monolayers of the surface we apply predominantly electron-based techniques such as x-ray photoelectron diffraction (XPD), low-energy electron diffraction (LEED), and also scanning-tunneling and atomic force microscopy (STM/AFM). Angle-resolved UV photoelectron spectroscopy (ARUPS) gives us access to the electronic band structure of solids and surfaces. Specifically, our experimental setup permits to directly map sections through the Fermi surfaces of such systems, which represent the electronic degrees of freedom relevant for transport properties, magnetic interactions and phase transitions. An important asset of all these experiments is that the same probe (photoemission) gives us structural, electronic and magnetic information, and we can therefore study the interplay between these different degrees of freedom on the same sample. In the framework of this project the h-BN Nanomesh was discovered in 2003. |
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| Publications / Publikationen | Photoemission above the Fermi level: the top of the minority d band in nickel, T. Greber, T. J. Kreutz, J. Osterwalder, Physical Review Letters 79 (1997) 4465-4468.X-ray photoelectron diffraction in the backscattering geometry: a key to adsorption sites and bond lengths at surfaces, T. Greber, J. Wider, E. Wetli, J. Osterwalder, Physical Review Letters 81 (1998) 1654-1657.Boron Nitride Nanomesh M. Corso, W. Auwärter, A. Tamai, T. Greber and J. Osterwalder, Science, 303 (2004) 217.Electron coherence in a melting lead monolayer F. Baumberger, W. Auwärter, T. Greber and J. Osterwalder, Science, 306 (2004) 2221.Rocking motion induced charging of C60:C60 on h-BN/Ni(111) M. Muntwiler, W. Auwärter, A.P. Seitsonen, J. Osterwalder and T. Greber, Phys. Rev. B, 71 (2005) 121402.Boron nitride nanomesh: functionality from a corrugated monolayer S. Berner, M. Corso, R. Widmer, O. Groening, R. Laskowski, P. Blaha, K. Schwarz, A. Goriochko, H. Over, S. Gsell, M. Schreck, H. Sachdev, T. Greber, J. Osterwalder, Angew. Chem. Int. Ed. 46 (2007) 5115.Surface Trapping of Atoms and Molecules with Dipole Rings H. Dil, J. Lobo-Checa, R. Laskowski, P. Blaha, S. Berner, J. Osterwalder, and T. Greber Science 319 (2008) 1826.Weitere Informationen |
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| Keywords / Suchbegriffe | surface structure, electronic structure, surface states, surface magnetism, photoelectron diffraction, electron confinement, nanostructures, monoatomic dielectric layers, molecular spintronics | ||||
| Project leadership and contacts / Projektleitung und Kontakte |
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| Other links to external web pages | http://www.physik.uzh.ch/groups/grouposterwalder/ | ||||
| Funding source(s) / Unterstützt durch |
SNF (Personen- und Projektförderung), EU, Private Sector (e.g. Industry) |
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| Duration of Project / Projektdauer | Nov 1994 to Mar 2011 |