A recently developed theory of atomic-scale local dielectric permittivity has been used to determine the position dependent optical and static dielectric permittivity profiles of a few nanoscale and heterojunction slabs. The dielectric constants at the interior regions of each component recovered their respective bulk values. Enhancement of the dielectric constant at the free surfaces and its variations at the interface could be correlated to the corresponding surface and interfacial chemistry.
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Research Article| December 14 2007
Local dielectric permittivity of based slabs and stacks: A first principles study
N. Shi, R. Ramprasad; Local dielectric permittivity of based slabs and stacks: A first principles study. Appl. Phys. Lett. 10 December 2007; 91 (24): 242906. https://doi.org/10.1063/1.2822834
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