Stable tetragonal phase and magnetic properties of Fe-doped HfO2 nanoparticles
Carregando...
Data
Data de publicação
Orientador
Título da Revista
ISSN da Revista
Título do Volume
É parte de
É parte de
É parte de
AIP Advances
Exportar
Resumo
In this paper, the effect in structural and magnetic properties of iron doping with concentration of 20% in hafnium dioxide (HfO2) nanoparticles is investigated. HfO2 is a wide band gap oxide with great potential to be used as high-permittivity gate dielectrics, which can be improved by doping. Nanoparticle samples were prepared by sol-gel chemical method and had their structure, morphology, and magnetic properties, respectively, investigated by X-ray diffraction (XRD), transmission electron microscopy (TEM) and scanning electron microscopy (SEM) with electron back scattering diffraction (EBSD), and magnetization measurements. TEM and SEM results show size distribution of particles in the range from 30 nm to 40 nm with small dispersion. Magnetization measurements show the blocking temperature at around 90 K with a strong paramagnetic contribution. XRD results show a major tetragonal phase (94%).
Como referenciar
SALES, T.S.N.; CAVALCANTE, F.H.M.; BOSCH-SANTOS, B.; PEREIRA, L.F.D.; CABRERA-PASCA, G.A.; FREITAS, R.S.; SAXENA, R.N.; CARBONARI, A.W. Stable tetragonal phase and magnetic properties of Fe-doped HfO2 nanoparticles. AIP Advances, v. 07, n. 05, p. 056315-1 - 056315-6, 2017. DOI: 10.1063/1.4976583. Disponível em: http://repositorio.ipen.br/handle/123456789/28677. Acesso em: 30 Dec 2025.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.