Diluted magnetic oxide nanostructures

• Grant number: 09/14628-6
• Support Opportunities: Regular Research Grants
• Start date: December 01, 2009
• End date: November 30, 2011
• Field of knowledge: Engineering - Materials and Metallurgical Engineering - Nonmetallic Materials
• Principal Investigator: Paulo Noronha Lisboa Filho
• Grantee: Paulo Noronha Lisboa Filho
• Host Institution: Faculdade de Ciências (FC). Universidade Estadual Paulista (UNESP). Campus de Bauru. Bauru , SP, Brazil

Abstract

This project proposes studying the synthesis conditions and characterization of diluted magnetic oxide nanostructures prepared by chemical routes such as sonochemical methods and hydrothermal synthesis. Since the occurrence of ferromagnetic behavior in these compounds is still a controversial issue, sometimes associated to the existence of cobalt nanoclusters in the samples, or even to effects or structural disorder and oxygen vacancy, it is still necessary performing studies on the synthesis of doped and non-doped ZnO and TiO2 nanoparticles. High controlled quality samples will be prepared to better understand the condition to the observation of ferromagnetism in the different prepared samples. (AU)

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)

ARRUDA, LARISA B.; LEITE, DOUGLAS M. G.; ORLANDI, MARCELO O.; ORTIZ, WILSON A.; LISBOA-FILHO, PAULO NORONHA. Sonochemical Synthesis and Magnetism in Co-doped ZnO Nanoparticles. Journal of Superconductivity and Novel Magnetism, v. 26, n. 7, p. 2515-2519, JUL 2013. (09/14628-6)

ARRUDA, LARISA B.; ORLANDI, MARCELO O.; LISBOA-FILHO, PAULO NORONHA. Morphological modifications and surface amorphization in ZnO sonochemically treated nanoparticles. ULTRASONICS SONOCHEMISTRY, v. 20, n. 3, p. 799-804, MAY 2013. (09/14628-6)