Objective
Lateral complexity is often a consequence of adsorbate induced reconstruction. Application of the tensor low energy electron diffraction (LEED) methodology has had a striking impact on surface reconstruction. The added precision and particularly the reliability with which adsorbate structures can be determined has greatly enhanced understanding of these systems. It is now clear that nearly every adsorbate system is accompanied by some sort of reconstruction of the substrate. This is particularly true of hydrogen.
Diffuse LEED (DLEED) experiments have proved a fruitful technique. Not only have they become part of the conventional analysis of surface structure, but they have stimulated the idea of electron holography at surfaces.
The problem of thermal vibrations at surfaces has proved a knotty one, but some progress has been made. Here the introduction of the concept of linear LEED will prove crucial. The assumption that diffraction from thermal vibrations of independent atoms adds linearly has been tested. This will greatly simplify the analysis of thermal data which is likely to prove complex: initial investigations of alkali adsorbates showed that simple models of thermal vibration in the adsorbate layer did not suffice to bring the data into the excellent agreement with experiment that is expected for clean surfaces with high Debye temperatures. Part of the blame lies in nonthermal effects such as distortion of the potential by dipole moment formation, but another source of problems which is being investigated is more complex structure to the thermal vibrations.
Programme(s)
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Topic(s)
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
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Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Call for proposal
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
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Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
Funding Scheme
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Coordinator
SW7 2BZ London
United Kingdom
The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.