Observation of magnetoplasmons, rotons, and spin-flip excitations in GaAs quantum wires

A. R. Goñi; A. Pinczuk; J. S. Weiner; B. S. Dennis; L. N. Pfeiffer; K. W. West

doi:10.1103/PhysRevLett.70.1151

Observation of magnetoplasmons, rotons, and spin-flip excitations in GaAs quantum wires

A. R. Goñi, A. Pinczuk, J. S. Weiner, B. S. Dennis, L. N. Pfeiffer, K. W. West

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69 Scopus citations

Abstract

Inelastic light scattering spectra of the one-dimensional electron gas in GaAs quantum wires embedded in a strong perpendicular magnetic field show long-wavelength collective excitations and display multiple structures that indicate the magnetoroton density of states. The observed shift of the q0 intersubband magnetoplasmons from the cyclotron frequency is the signature of 1D behavior. At low temperatures spin polarization of the 1D system is revealed by the exchange enhancement of spin-flip excitations.

Original language	English (US)
Pages (from-to)	1151-1154
Number of pages	4
Journal	Physical review letters
Volume	70
Issue number	8
DOIs	https://doi.org/10.1103/PhysRevLett.70.1151
State	Published - 1993
Externally published	Yes

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

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10.1103/PhysRevLett.70.1151

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abstract = "Inelastic light scattering spectra of the one-dimensional electron gas in GaAs quantum wires embedded in a strong perpendicular magnetic field show long-wavelength collective excitations and display multiple structures that indicate the magnetoroton density of states. The observed shift of the q0 intersubband magnetoplasmons from the cyclotron frequency is the signature of 1D behavior. At low temperatures spin polarization of the 1D system is revealed by the exchange enhancement of spin-flip excitations.",

author = "Go{\~n}i, {A. R.} and A. Pinczuk and Weiner, {J. S.} and Dennis, {B. S.} and Pfeiffer, {L. N.} and West, {K. W.}",

year = "1993",

doi = "10.1103/PhysRevLett.70.1151",

language = "English (US)",

volume = "70",

pages = "1151--1154",

journal = "Physical review letters",

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T1 - Observation of magnetoplasmons, rotons, and spin-flip excitations in GaAs quantum wires

AU - Goñi, A. R.

AU - Pinczuk, A.

AU - Weiner, J. S.

AU - Dennis, B. S.

AU - Pfeiffer, L. N.

AU - West, K. W.

PY - 1993

Y1 - 1993

N2 - Inelastic light scattering spectra of the one-dimensional electron gas in GaAs quantum wires embedded in a strong perpendicular magnetic field show long-wavelength collective excitations and display multiple structures that indicate the magnetoroton density of states. The observed shift of the q0 intersubband magnetoplasmons from the cyclotron frequency is the signature of 1D behavior. At low temperatures spin polarization of the 1D system is revealed by the exchange enhancement of spin-flip excitations.

AB - Inelastic light scattering spectra of the one-dimensional electron gas in GaAs quantum wires embedded in a strong perpendicular magnetic field show long-wavelength collective excitations and display multiple structures that indicate the magnetoroton density of states. The observed shift of the q0 intersubband magnetoplasmons from the cyclotron frequency is the signature of 1D behavior. At low temperatures spin polarization of the 1D system is revealed by the exchange enhancement of spin-flip excitations.

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DO - 10.1103/PhysRevLett.70.1151

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JO - Physical review letters

JF - Physical review letters

IS - 8

ER -

Observation of magnetoplasmons, rotons, and spin-flip excitations in GaAs quantum wires

Abstract

All Science Journal Classification (ASJC) codes

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