Analysis of the dielectric function of aluminum (Al) in bulk and nanometric states

We model the dielectric function of aluminum (Al). The modeling has been performed on Al in bulk and nanometric states. First, we will model the experimental measurements of the dielectric constant as a function of the pulsation ω by appropriate mathematical functions in an explicit way. In the seco...

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Bibliographic Details
Published in:Molecular Crystals and Liquid Crystals 2020-10, Vol.710 (1), p.90-102
Main Authors: Ait Hammou, Brahim, El Kaaouachi, Abdelhamid, El Oujdi, Abdellatif, Echchelh, Adil, Dlimi, Said
Format: Article
Language:English
Subjects:
Aluminum
bulk
dielectric constant
interband
intraband transitions
IR pulsations
Mathematical functions
nanometric
Permittivity
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Summary:We model the dielectric function of aluminum (Al). The modeling has been performed on Al in bulk and nanometric states. First, we will model the experimental measurements of the dielectric constant as a function of the pulsation ω by appropriate mathematical functions in an explicit way. In the second part, we will highlight the contributions due to intraband and interband electronic transitions. In the last part, we model the dielectric constant of this metal in the nanometric state using several complex theoretical models such as the Drude Lorentz theory and the Drude two-point critical model. We shall comment on which model fits the experimental dielectric function best.
ISSN:1542-1406
1563-5287
1527-1943
DOI:10.1080/15421406.2020.1831726