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Multifunctional ceramic layers with high electromagnetoelastic coupling in complex geometries

Multifunctional ceramic layers with high electromagnetoelastic coupling in complex geometries

Objective

MULTICERALis a joint effort of eight European research institutions/universities from six countries (UK, Germany, France, Portugal, Slovenia, Lithuania) aimed at the development, detailed characterization, and evaluation of novel multifunctional thin-film materials based on ferroelectrics [Pb(Zr,Ti)O3, BaTiO3, SrBi2Ta2O9], magnetics and shape memory alloys (SMA) (Ni2MnGa, BiFeO3), and relaxors [PbMg1/3Nb2/3O3, Ba(Ti,Zr)O3] assembled in complex geometries. These include planar films and multi-layers, hybrid sol-gel composites, and vertically assembled tube and nanowire arrays. We expect that such geometries will greatly enhance the cross coupling between magnetic, electric, and elastic T-dependent properties and give rise to unrivaled multi-functionalities unavailable so far. For example, the microactuator based on ferromagnetic shape memory alloy/piezoelectric bilayer will respond to electric/magnetic/stress fields while exhibiting two-way shape memory effect. Another example is magnetically tuned capacitor wit h giant magneto-dielectric coupling based on magnetic/piezoelectric multi-layers. At least two prototype devices based on the high cross-coupling effects will be fabricated/tested in this project proving the proposed concepts.

The variety of the available de position techniques combined with using advanced characterization tools will ensure that the desired thin film geometries will be assembled with minimum cross-contamination, non-stoichiometry and defect formation. These efforts will be supported by the extensive modelling activities aimed at the elucidation of the nature of magneto-electroelastic coupling in thin films, calculation of the effect of curved geometries on cross-coupling effects, and influence of disorder and long-range interactions on the properties of multi-layers and magnetic/ferroelectric domain patterns. Finite element calculations will be performed once the physical mechanism of the relevant coupling effect is clarified.

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Coordinator

UNIVERSIDADE DE AVEIRO (UNIVERSITY OF AVEIRO)

Address

Campus De Santiago
Aveiro

Portugal

Administrative Contact

Andrei KHOLKINE (Prof.)

Participants (7)

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CHANCELLOR MASTERS AND SCHOLARS OF THE UNIVERSITY OF CAMBRIDGE

United Kingdom

INSTITUT JOZEF STEFAN (J. STEFAN INSTITUTE)

Slovenia

UNIVERSITAET DUISBURG-ESSEN (UNIVERSITY OF DUISBURG-ESSEN)

Germany

CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE

France

VILNIAUS UNIVERSITETAS (VILNIUS UNIVERSITY)

Lithuania

OFFICE NATIONAL D'ETUDES ET DE RECHERCHES AEROSPATIALES'

France

UNIVERSITÉ DE PICARDIE JULES VERNE (UNIVERSITY OF PICARDIE JULES VERNE)

France

Project information

Grant agreement ID: 32616

  • Start date

    1 November 2006

  • End date

    30 April 2010

Funded under:

FP6-NMP

  • Overall budget:

    € 2 241 349

  • EU contribution

    € 1 550 000

Coordinated by:

UNIVERSIDADE DE AVEIRO (UNIVERSITY OF AVEIRO)

Portugal