Observation of many-body interactions of electrons in coupled double quantum wells

A. S. Plaut; A. Pinczuk; B. S. Dennis; J. P. Eisenstein; L. N. Pfeiffer; K. W. West

doi:10.1016/0039-6028(96)00358-5

Observation of many-body interactions of electrons in coupled double quantum wells

A. S. Plaut, A. Pinczuk, B. S. Dennis, J. P. Eisenstein, L. N. Pfeiffer, K. W. West

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

10 Scopus citations

Abstract

We have investigated, by resonant inelastic light-scattering, the finite in-plane wavevector dispersion of the collective excitations of electron bilayers in AlGaAs/GaAs double quantum wells. As the wavevector is increased the plasmon mode first becomes Landau damped and then at larger wavevectors it re-appears as it emerges from one of the two maxima of the continuum of single-particle excitations in a two-dimensional system with two occupied subbands. These measurements enable quantitative determination of many-body interactions in dilute electron bi-layers.

Original language	English (US)
Pages (from-to)	158-162
Number of pages	5
Journal	Surface Science
Volume	361-362
DOIs	https://doi.org/10.1016/0039-6028(96)00358-5
State	Published - Jul 20 1996
Externally published	Yes

All Science Journal Classification (ASJC) codes

Condensed Matter Physics
Surfaces and Interfaces
Surfaces, Coatings and Films
Materials Chemistry

Keywords

Gallium arsenide
Heterojunctions
Raman scattering spectroscopy
Semiconductor-semiconductor heterostructures

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10.1016/0039-6028(96)00358-5

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title = "Observation of many-body interactions of electrons in coupled double quantum wells",

abstract = "We have investigated, by resonant inelastic light-scattering, the finite in-plane wavevector dispersion of the collective excitations of electron bilayers in AlGaAs/GaAs double quantum wells. As the wavevector is increased the plasmon mode first becomes Landau damped and then at larger wavevectors it re-appears as it emerges from one of the two maxima of the continuum of single-particle excitations in a two-dimensional system with two occupied subbands. These measurements enable quantitative determination of many-body interactions in dilute electron bi-layers.",

keywords = "Gallium arsenide, Heterojunctions, Raman scattering spectroscopy, Semiconductor-semiconductor heterostructures",

author = "Plaut, {A. S.} and A. Pinczuk and Dennis, {B. S.} and Eisenstein, {J. P.} and Pfeiffer, {L. N.} and West, {K. W.}",

year = "1996",

month = jul,

day = "20",

doi = "10.1016/0039-6028(96)00358-5",

language = "English (US)",

volume = "361-362",

pages = "158--162",

journal = "Surface Science",

issn = "0039-6028",

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TY - JOUR

T1 - Observation of many-body interactions of electrons in coupled double quantum wells

AU - Plaut, A. S.

AU - Pinczuk, A.

AU - Dennis, B. S.

AU - Eisenstein, J. P.

AU - Pfeiffer, L. N.

AU - West, K. W.

PY - 1996/7/20

Y1 - 1996/7/20

N2 - We have investigated, by resonant inelastic light-scattering, the finite in-plane wavevector dispersion of the collective excitations of electron bilayers in AlGaAs/GaAs double quantum wells. As the wavevector is increased the plasmon mode first becomes Landau damped and then at larger wavevectors it re-appears as it emerges from one of the two maxima of the continuum of single-particle excitations in a two-dimensional system with two occupied subbands. These measurements enable quantitative determination of many-body interactions in dilute electron bi-layers.

AB - We have investigated, by resonant inelastic light-scattering, the finite in-plane wavevector dispersion of the collective excitations of electron bilayers in AlGaAs/GaAs double quantum wells. As the wavevector is increased the plasmon mode first becomes Landau damped and then at larger wavevectors it re-appears as it emerges from one of the two maxima of the continuum of single-particle excitations in a two-dimensional system with two occupied subbands. These measurements enable quantitative determination of many-body interactions in dilute electron bi-layers.

KW - Gallium arsenide

KW - Heterojunctions

KW - Raman scattering spectroscopy

KW - Semiconductor-semiconductor heterostructures

UR - http://www.scopus.com/inward/record.url?scp=0030189406&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0030189406&partnerID=8YFLogxK

U2 - 10.1016/0039-6028(96)00358-5

DO - 10.1016/0039-6028(96)00358-5

M3 - Article

AN - SCOPUS:0030189406

SN - 0039-6028

VL - 361-362

SP - 158

EP - 162

JO - Surface Science

JF - Surface Science

ER -

Observation of many-body interactions of electrons in coupled double quantum wells

Abstract

All Science Journal Classification (ASJC) codes

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