Objective
We will investigate the k-space dependence of the superconducting energy gap A in thin films of the high-temperature superconductors Bi2Sr2CaCu2O8+E and Bi2Sr2Ca2Cu3010+E. The special interest in this study arises from the fact that Bi-2212 is a candidate for the unconventional d-wave pairing state through a coupling mechanism different from the usual BCS concept. The proposed experiment implies the fabrication of Josephson tunnel junctions. In a first step we will prepare epitaxial films and pattern them into microbridges along well defined crystallographic axes. Tunnel junctions along the different directions will be produced either by narrowing the microbridges to nanobridges or by the deposition of a ferromagnetic layer across the microbridges. In order to study the anisotropy of the energy gap A(k,T), current-voltage characteristics will be measured, since the critical current is related to A(T). The assumption of a d-wave state predicts the vanishing of A for specific crystallographic directions.
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
- natural sciences physical sciences electromagnetism and electronics superconductivity
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Programme(s)
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Multi-annual funding programmes that define the EU’s priorities for research and innovation.
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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.
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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
3001 HEVERLEE
Belgium
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