Objective
The main objective is the study of structural and magnetic properties of classical magnets and ferroelectrics at nanometer scale as well as a study of their potential applications. For this purpose new types of nanocomposites with materials embedded in porous matrixes with typical pore diameters of a few nm will be prepared by an original technology. The present project focuses on magnetic and structural ordering as well as phase transitions in the classical ferromagnets (Fe, Ni), antiferromagnets (MnO, CoO, FeO) and ferroelectrics (NaNO2, KH2PO4) embedded in nanoporous matrixes. We will utilize as matrixes a porous glass with irregular system of pores, novel mesoporous materials MCM-41 and SBA-15, artificial opals and a natural mineral - chrysotile asbestos with regular system of nano-channels and highly oriented nanopores in polymeric " track membranes" and porous alumina.
The aims of our investigations are to evidence and characterize:
- The effect of finite size and pore topology on temperature shift and character of phase transition in confined magnetic and ferroelectric materials;
- The effect of finite size on fundamental properties of magnets and ferroelectrics: magnetic moment, type of ordering, size of nanoparticle and magneto-ordered area, thermal vibration amplitudes;
- The effect of magnetic and crystal symmetry on phase transition in confinement;
- The new peculiarities of nanostructured materials, which are absent in bulk materials, namely, the unusually low thermal expansion coefficients observed in the embedded metals or the super-high dielectric permittivity observed in embedded ferroelectrics.
The same compounds MnO and NaNO2 embedded in the different matrixes: glasses, mesoporous materials, opals, asbestos, track membranes and porous alumina will be studied to determine the effect of mean pore diameter and topology of cavities. To study the effect of magnetic symmetry, antiferromagnets with characteristics embedded in the same matrix will be studied.
All teams presented in the project actively carry out researches in the field of nanomaterials. The knowledge obtained by the present study will enable us to define and to evaluate the possible ways top use these systems for technical applications.
Fields of science (EuroSciVoc)
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Programme(s)
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Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Topic(s)
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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
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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.
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Coordinator
91191 Gif-sur-Yvette
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.