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Theory of plasmon excitations in (SN)x

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Theory of plasmon excitations in (SN)x

Auteurs : J. Ruvalds [États-Unis] ; F. Brosens [Belgique] ; L. F. Lemmens [Belgique] ; J. T. Devreese [Belgique]

Source :

Solid State Communications [ 0038-1098 ] ; 1977.

RBID : ISTEX:3A5BB76C35899603DDA789659C1917BC66D799D1

English descriptors

Teeft :
- Anisotropic, Anisotropic electron, Anisotropy, Antwerpen, Dielectric, Dielectric function, Dimensional electron, Effective mass, Electron loss data, Exchange contribution, Excitation, Fermi energy, Good agreement, Lett, Lindhard, Lindhard expression, Lindhard polarizability, Long wave length plasmon dispersion, Mass ratio, Numerical value, Phys, Plasmon, Plasmon dispersion, Plasmon excitations, Plasmon frequency, Random phase approximation, Strand axis.

Abstract

Abstract: The anomalous anisotropy and dispersion of plasmons in polymeric sulfur nitride (SN)x are explained within a model of an electron gas with an anisotropic effective mass ratio. Calculations in the random phase approximation yield very good agreement with the electron loss data. Exchange corrections for the model are shown to be small for systems of the (SN)x type which exhibit reduced dimensionality.

Url:

https://api.istex.fr/ark:/67375/6H6-ZLD5SNCQ-3/fulltext.pdf

DOI: 10.1016/0038-1098(77)90451-3

Affiliations:

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Le document en format XML

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<front><div type="abstract" xml:lang="en">Abstract: The anomalous anisotropy and dispersion of plasmons in polymeric sulfur nitride (SN)x are explained within a model of an electron gas with an anisotropic effective mass ratio. Calculations in the random phase approximation yield very good agreement with the electron loss data. Exchange corrections for the model are shown to be small for systems of the (SN)x type which exhibit reduced dimensionality.</div>
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Theory of plasmon excitations in (SN)x

Theory of plasmon excitations in (SN)x

Source :

English descriptors

Abstract

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