Optical and magnetic properties of Co-doped ZnO nanoparticles and the onset of ferromagnetic order

Página do item simplificado
dc.creatorCastro, Tiago de Jesus e
dc.creatorRodrigues, P. A. M.
dc.creatorOliveira, Aderbal Carlos de
dc.creatorNakagomi, Fábio
dc.creatorMantilla Ochoa, John Carlos
dc.creatorHuamaní Coaquira, José Antonio
dc.creatorFranco Júnior, Adolfo
dc.creatorPessoni, Hermínia Veridiana dos Santos
dc.creatorMorais, Paulo Cesar de Morais
dc.creatorSilva, Sebastiao William da
dc.date.accessioned2023-11-09T11:53:27Z
dc.date.available2023-11-09T11:53:27Z
dc.date.issued2017
dc.description.abstractIn this study, we report on the optical and magnetic properties of Co-doped ZnO nanoparticles with increasing Co-content (CoxZn1−xO; x = 0.000, 0.005, 0.010, 0.030, 0.050, 0.070, and 0.100) synthesized by the combustion reaction method. The X-ray diffraction patterns and the Raman spectra of all samples indicated the formation of the ZnO hexagonal wurtzite phase (space group C46V). The Raman data also show the formation of a secondary Co3O4 phase, which is barely seen in the X-ray spectra. Photoacoustic spectroscopy and electron paramagnetic resonance confirm the presence of the two phases (CoxZn1−xO and Co3O4). Vibrating sample magnetometer measurements performed at room temperature exhibited hysteresis loops, indicating the presence of long-range magnetic ordering in the samples. Analysis of the magnetization as a function of magnetic field and temperature shows that the ferromagnetism in the as-synthesized samples comes from small Co-metallic inclusions, with an estimated radius of about 4.8 nm and blocking temperature around 595 K.
dc.identifier.citationCASTRO, T. J. et al. Optical and magnetic properties of Co-doped ZnO nanoparticles and the onset of ferromagnetic order. Journal of Applied Physics, Melville, v. 121, e013904, 2017. DOI: 10.1063/1.4973526. Disponível em: https://pubs.aip.org/aip/jap/article/121/1/013904/145189/Optical-and-magnetic-properties-of-Co-doped-ZnO. Acesso em: 4 set. 2023. Print: 0021-8979 Electronic: 1089-7550
dc.identifier.doi10.1063/1.4973526
dc.identifier.issn0021-8979
dc.identifier.issne- 1089-7550
dc.identifier.urihttps://pubs.aip.org/aip/jap/article/121/1/013904/145189/Optical-and-magnetic-properties-of-Co-doped-ZnO
dc.identifier.urihttp://repositorio.bc.ufg.br//handle/ri/23711
dc.language.isoeng
dc.publisher.countryCanada
dc.publisher.departmentInstituto de Física - IF (RMG)
dc.rightsAcesso Restrito
dc.titleOptical and magnetic properties of Co-doped ZnO nanoparticles and the onset of ferromagnetic order
dc.typeArtigo

Arquivos

Pacote Original
Agora exibindo 1 - 1 de 1
Nenhuma Miniatura disponível
Nome:
Excluir arquivo.pdf
Tamanho:
14.84 KB
Formato:
Adobe Portable Document Format
Baixar
Licença do Pacote
Agora exibindo 1 - 1 de 1
Nenhuma Miniatura disponível
Nome:
license.txt
Tamanho:
1.71 KB
Formato:
Item-specific license agreed upon to submission
Descrição:
Baixar

Coleções

IF - Artigos publicados em periódicos