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Geometrical and electronic structure at and near surfaces

English title Geometrical and electronic structure at and near surfaces
Applicant Aebi Philipp
Number 124681
Funding scheme Project funding
Research institution Département de Physique Université de Fribourg
Institution of higher education University of Fribourg - FR
Main discipline Condensed Matter Physics
Start/End 01.04.2009 - 31.03.2011
Approved amount 569'752.00
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Keywords (11)

surfaces; nanostructures; selfassembly; low dimensional systems; transition metal dichalcogenides; angle-resolved photoemission; Fermi surface mapping; scanning tunneling microscopy and spectroscopy; low energy electron diffraction; silicon surfaces;

Lay Summary (English)

Lead
Lay summary
Context and significance:The project focuses on fundamental physics concerning the atomic and electronic structure. The main goal is to create new knowledge and better understanding at the quantum mechanics and sub-nanometer level of how electrons and atoms are organized in solids and near surfaces. In particular, the results lead to new views and explanations on the mechanisms behind the extremely variable properties of new and old materials used in various devices and applications. Research in this field is crucial for all developments in relation with new materials. Scientific frame and methodology:The frame and methodology is given by the experimental possibilities. In the present project angle-resolved photoemission and scanning tunneling microscopy and spectroscopy experiments are done. These experiments allow a very detailed investigation of the "organization" of electrons and atoms at the surface and close to it. However, these experiments require well-defined surfaces of the materials under study and stringent vacuum conditions.
Direct link to Lay Summary Last update: 21.02.2013

Responsible applicant and co-applicants

Employees

Associated projects

Number Title Start Funding scheme
128686 Towards a more bulk sensitive photoemission experiment 01.06.2010 R'EQUIP
121344 PEARL: A new bending-magnet endstation for state-of-the-art X-ray Photoelectron Diffraction combined with Scanning Tunneling Microscopy characterization at the Swiss Light Source 01.10.2009 R'EQUIP
134890 Geometrical and electronic structure at and near surfaces 01.04.2011 Project funding
116601 Geometrical and electronic structure at and near surfaces 01.04.2007 Project funding
134890 Geometrical and electronic structure at and near surfaces 01.04.2011 Project funding

Abstract

Context and significance:The project focuses on fundamental physics concerning the atomic and electronic structure. The main goal is to create new knowledge and better understanding on the quantum mechanics and sub-nanometer level of how electrons and atoms are organized in solids and near surfaces. In particular, the results lead to new views and explanations on the mechanisms behind the extremely variable properties of new and old materials used in various devices and applications. Research in this field is crucial for all developments in relation with new materials. Scientific frame and methodology:The frame and methodology is given by the experimental possibilities. In the present project angle-resolved photoemission and scanning tunneling microscopy and spectroscopy experiments are done. These experiments allow a very detailed investigation of the “organization” of electrons and atoms at the surface and close to it. However, these experiments require well-defined surfaces of the materials under study and stringent vacuum conditions.
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