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Preparation of oriented ceramics by synthesis in electric and magnetic field starting from nanostructured precursors

Grant number: 11/00922-0
Support Opportunities:Research Grants - Visiting Researcher Grant - International
Duration: June 06, 2011 - September 05, 2011
Field of knowledge:Engineering - Materials and Metallurgical Engineering - Nonmetallic Materials
Principal Investigator:José Arana Varela
Grantee:José Arana Varela
Visiting researcher: Zorica Brankovic
Visiting researcher institution: University of Belgrade, Serbia
Host Institution: Instituto de Química (IQ). Universidade Estadual Paulista (UNESP). Campus de Araraquara. Araraquara , SP, Brazil
Associated research grant:98/14324-0 - Multidisciplinary Center for Development of Ceramic Materials, AP.CEPID


Multiferroics materials exhibit simultaneously ferroelectric and ferromagnetic polarizations and a coupling between them. Due to the coupling between ferroelectric and magnetic domains, multiferroics are likely to offer a whole range of new applications and phenomena. Manganites, either BiMnO3 or REMnO3 (RE = rare earth), present very important class among the known multiferroic materials. The both types of manganite can exist in different crystallographic structures, which strongly influence their electrical and magnetic properties. Besides, BiMnO3 is metastable compound that could be prepared only under extreme conditions of high temperatures and pressures. The real challenge is to prepare these compounds with optimal and controlled structural and microstructural properties using alternative methods such as mechanochemical, chemical and solvothermal synthesis. The main objective of the proposed research by Dra. Zorica Brankovic is to prepare nanostructured YMnO3 and BiMnO3 compounds in bulk and thin films and correlate structural and morphological parameters of these materials with their electrical and magnetic properties. Dra Zorica Brankovic has a large experience in synthesis of complex structures by using mechanical and chemical methods. In this way she will collaborate with the research line in multiferroics developed by the group which is up to now limited in bismuth ferrites. This research line is extremely strategic and has been studied by several world important groups with excellent perspectives in application of these materials in the field of electronics which needs electrical and magnetic fields, mainly in non volatile memories. (AU)

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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
BRANKOVIC, Z.; BRANKOVIC, G.; POCUCA-NESIC, M.; STANOJEVIC, Z. MARINKOVIC; ZUNIC, M.; GOLIC, D. LUKOVIC; TARARAM, R.; CILENSE, M.; ZAGHETE, M. A.; JAGLICIC, Z.; et al. Hydrothermally assisted synthesis of YMnO3. CERAMICS INTERNATIONAL, v. 41, n. 10, B, p. 14293-14298, . (11/00922-0)

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