Use este identificador para citar ou linkar para este item: https://locus.ufv.br//handle/123456789/17645
Tipo: Artigo
Título: Electronic and optical properties of antiferromagnetic iron doped NiO – A first principles study
Autor(es): Borges, Pablo D.
Petersen, John E.
Twagirayezu, Fidele
Scolfaro, Luisa M.
Geerts, Wilhelmus J.
Abstract: Antiferromagnetic NiO is a candidate for next generation high-speed and scaled RRAM devices. Here, electronic and optical properties of antiferromagnetic NiO: Fe 25% in the rock salt structure are studied and compared to intrinsic NiO. From density of states and complex dielectric function analysis, the first optical transition is found to be at lower frequency than intrinsic NiO due to an Fe impurity level being the valence band maximum. The resulting effects on refractive index, reflectivity, absorption, optical conductivity and loss function for Fe-doped NiO are compared to those of intrinsic NiO, and notable differences are analyzed. The electronic component of the static dielectric constant of NiO: Fe 25% is calculated to be about 2% less than that of intrinsic NiO.
Palavras-chave: Nickel
Antiferromagnetism
Photonic bandgap materials
Optical absorption
Dielectric function
Editor: AIP Advances
Tipo de Acesso: Open Access
URI: https://doi.org/10.1063/1.4975493
http://www.locus.ufv.br/handle/123456789/17645
Data do documento: 6-Fev-2017
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