Propagation of plasmons across layers of GaAs-Ga1 -xAlxAs superlattices

D. Kirillov; C. Webb; J. Eckstein

doi:10.1063/1.97326

Propagation of plasmons across layers of GaAs-Ga₁ _-xAl_xAs superlattices

D. Kirillov, C. Webb, J. Eckstein

Research output: Contribution to journal › Article › peer-review

Abstract

The transformation from quasi-two-dimensional to three-dimensional behavior of the free-electron gas in GaAs-Ga_1-xAl_xAs multiple quantum well structures was observed. This transformation corresponds to the establishment of well defined three-dimensional plasmon modes measured by Raman scattering, which propagate across layers of an n-type doped superlattice when the layer thicknesses are reduced to 20 Å or less. This type of behavior is consistent with the Kronig-Penney type model describing coupling between the wells and formation of energy minibands in a superlattice.

Original language	English (US)
Pages (from-to)	1366-1368
Number of pages	3
Journal	Applied Physics Letters
Volume	49
Issue number	20
DOIs	https://doi.org/10.1063/1.97326
State	Published - 1986
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.97326

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Cite this

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title = "Propagation of plasmons across layers of GaAs-Ga1 -xAlxAs superlattices",

abstract = "The transformation from quasi-two-dimensional to three-dimensional behavior of the free-electron gas in GaAs-Ga1-xAlxAs multiple quantum well structures was observed. This transformation corresponds to the establishment of well defined three-dimensional plasmon modes measured by Raman scattering, which propagate across layers of an n-type doped superlattice when the layer thicknesses are reduced to 20 {\AA} or less. This type of behavior is consistent with the Kronig-Penney type model describing coupling between the wells and formation of energy minibands in a superlattice.",

author = "D. Kirillov and C. Webb and J. Eckstein",

year = "1986",

doi = "10.1063/1.97326",

language = "English (US)",

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pages = "1366--1368",

journal = "Applied Physics Letters",

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AU - Kirillov, D.

AU - Webb, C.

AU - Eckstein, J.

PY - 1986

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N2 - The transformation from quasi-two-dimensional to three-dimensional behavior of the free-electron gas in GaAs-Ga1-xAlxAs multiple quantum well structures was observed. This transformation corresponds to the establishment of well defined three-dimensional plasmon modes measured by Raman scattering, which propagate across layers of an n-type doped superlattice when the layer thicknesses are reduced to 20 Å or less. This type of behavior is consistent with the Kronig-Penney type model describing coupling between the wells and formation of energy minibands in a superlattice.

AB - The transformation from quasi-two-dimensional to three-dimensional behavior of the free-electron gas in GaAs-Ga1-xAlxAs multiple quantum well structures was observed. This transformation corresponds to the establishment of well defined three-dimensional plasmon modes measured by Raman scattering, which propagate across layers of an n-type doped superlattice when the layer thicknesses are reduced to 20 Å or less. This type of behavior is consistent with the Kronig-Penney type model describing coupling between the wells and formation of energy minibands in a superlattice.

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