Objective
Research objectives and content
Recently, it appears that the order parameter in high Tc superconductors is d-wave, breaking the underlying symmetry of the material. This question cannot be settled definitively on orthorhombic materials because of the presence of chains. One needs a model high Tc compound with tetragonal symmetry and a single Cu02 layer (TSL). Amongst the several TSL compounds we selected the HgBa2CuO4+O (Hg-1201) compound for its particularly 'clean' chemical structure. We plan to perform symmetry testing experiments on this new compound such as angularly resolved tunneling and thermal conductivity in a field. These are novel experimental techniques which provide for the first time the capacity to experimentally map the superconducting gap along different crystallographic directions. We put the accent on excellent quality samples. Ist year of the project will be spent on extensive physical characterization of-the single crystals. 2nd year of the project will be spent on symmetry testing experiments. Expected results are classification of the physical properties of Hg-1201 compound as well as angular variation of the gap. Ultimately, we expect to clarify the issue of the symmetry of the order parameter in this novel compound.
Training content (objective, benefit and expected impact)
This a new held: high quality single crystals of Hg-1201 have been performed only very recently (1996-97); many leading european laboratories are currently measuring them. Strong impact of our work: it will provide new data from key experiments in the novel TSL compound Hg-1201. Training in many areas such as thin film deposition-lithography techniques, micro-mechanics and micro-manipulation, six face lithography, ion polishing is of high technological value and well adapted for an industrial position. Multiple exposure to several European laboratones collaborating on the project is particularly useful for a future research career possibly back to Greece.
Links with industry / industrial relevance (22)
The CRTBT host group, together with Demokritos, Athens, have an ongoing collaboration with CERECO SA, a greek R&D company specialized in ceramics and refractories. The present project will be part of this collaboration
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
- engineering and technology materials engineering coating and films
- engineering and technology materials engineering ceramics
- natural sciences physical sciences electromagnetism and electronics superconductivity
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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.
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
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Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
Funding Scheme
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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
38042 GRENOBLE
France
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.