Effective Magnetic Anisotropy of Ni_xCo_1-xFe₂O₄ Nanoparticles

Autor(es)

Dalla Costa, Leonardo J. ; Freitas, Marcio R. ; Gouveia, Guilherme L. ; Kiminami, Ruth H. G. A. ; Oliveira, Adilson J. A. ; Gualdi, Alexandre J.

• Tipo de documento: Artigo Científico
• Fonte: IEEE Transactions on Magnetics; v. 60, n. 11, p. 5-pg., 2024-11-01.

Resumo

The study of nanoparticles has generated great interest in recent years in several areas of research. For example, in multiferroic composite materials, the combination of ferroelectric materials and ferrimagnetic materials like the ferrites, may lead to the magnetoelectric effect. In particular, CoFe2O4 and NiFe2O4 as magnetic phases are interesting since these materials are electrical isolating oxides with high magnetic transition temperatures and high saturation magnetization. In this work, the effective magnetic anisotropy was studied as a function of the temperature for nanocrystalline nickel doped cobalt ferrite (CFO) samples NixCo1-xFe2O4, ( x=0 , 0.25, 0.50, 0.75, and 1). (AU)

• Processo FAPESP: 23/02420-9 - EMU concedido no processo 2013/072962: difratômetro de raio-x, modelo SmartLab SE-C com acessórios
• Beneficiário: Elson Longo da Silva
• Modalidade de apoio: Auxílio à Pesquisa - Programa Equipamentos Multiusuários
• Processo FAPESP: 13/07296-2 - CDMF - Centro de Desenvolvimento de Materiais Funcionais
• Beneficiário: Elson Longo da Silva
• Modalidade de apoio: Auxílio à Pesquisa - Centros de Pesquisa, Inovação e Difusão - CEPIDs