Objective
Research objectives and content
Many novel vortex phases present in the field -temperature phase diagram of High-T, superconductors. A novel vortex phase name Bragg glass with properties between a glass and a perfect lattice is expected to thermally melt to a flux liquid via afrst order melting transition. Recent latent heat measurements suggest that the defects in the samples drive the melting transition from Ist to 2nd. One then expects two bicritical points in a given sample that should be observable only at low defect densities. We plan to perform micro-calorimetry experiments (resolution: 10/9Joule/K) in the field range 0-30 Tesla in order to trace for thefirst time the latent heat and entropy of these phase transitions. We also plan to perform l-V measurements on single crystal rings with subpicoVolt resolution in order to check predictions of vortex glass theory in ordered samples. We intend to combine the above results with measurements of the magneto-caloric effect, a utlique trace of phase transitions at low fields. We expect to trace the latent heat of flux lattice melting and find the first thermodynamic proof that the vortex glass-vortex liquid is a true phase transition. We also expect a possible evidence for a Bragg glass-vortex glass transition and a possible evidence for re-entrant flux lattice melting at low magnetic inductions.
Training content (objective, benefit and expected impact)
The vortex phase diagram is a cutting edge problem rapidly advancing. This project. supported by advanced technological tools, will answer some key questions and also influence manvoer fields such as polymorphs and generally disordered matter physics. Training will be received in advanced technologic areas such as micro-magnetic sensor-b-thermal sensors, integrated suspended membranes techniques and focused LASER ablation and will be a certificate for an academic and industrial carreer. Links with industry / industrial relevance (22)
Vortex behavior will shape scientifically su-e(ce=d- and commercially its potential applications. This project will be a field of common interest with SCHNEIDER ELECTRIC SA France on the problem of high critical currents and its relation with twin planes and defects. The micro-magnetic sensors part of the project will be realized in collaboration with IXTREM SA. France, specialized on industrial applications of magnetic and electriomagnetic technologies. The part concerning LASER beam patterning will be realized in collaboration with IBM Yorktwon Heights, New York, USA.
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 electrical engineering, electronic engineering, information engineering electronic engineering sensors
- engineering and technology materials engineering amorphous solids
- natural sciences physical sciences optics laser physics
- 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.