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Structural and magnetic properties studies of heavy metal oxide glasses containing transition metals

Grant number: 13/06942-8
Support type:Scholarships abroad - Research Internship - Master's degree
Effective date (Start): June 03, 2013
Effective date (End): November 02, 2013
Field of knowledge:Physical Sciences and Mathematics - Chemistry - Inorganic Chemistry
Principal researcher:Marcelo Nalin
Grantee:Renata Fernandes Siqueira
Supervisor abroad: Christian Rüssel
Home Institution: Centro de Ciências Exatas e de Tecnologia (CCET). Universidade Federal de São Carlos (UFSCAR). São Carlos , SP, Brazil
Research place: Friedrich Schiller University Jena, Germany  
Associated to the scholarship:12/05087-4 - Synthesis of glasses and glassceramics in the system SbPO4-PbO-ZnO doped with manganese and iron., BP.MS


This project aims to obtain heavy metal oxides based vitreous materials doped with transition metal salts (Mn, Fe, Ag), which make possible the nucleation and subsequently growth of magnetic crystalline phases in their bulk. The glass compositions are prepared by the melting-quenching methodology, and the glass-ceramics are prepared by heat treatment of the glasses above their glass temperature. The structural properties of the synthesized materials will be analyzed by Raman spectroscopy, electronic paramagnetic resonance (EPR), Mössbauer spectroscopy, X-Ray diffraction (XRD), transmission electronic microscopy and atomic force microscopy (AFM). For the magnetic measurements a superconducting quantum interference device (SQUID) and magnetic force microscope (MFM) will be used. Chemical analisys (EDX) can also be used to give information about the composition of the nanoparticles. (AU)

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