Magnetoplasmons in modulated two-dimensional electronic systems

S. M. Stewart; C. Zhang

doi:10.1088/0268-1242/10/11/018

Magnetoplasmons in modulated two-dimensional electronic systems

S. M. Stewart, C. Zhang

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

4 Scopus citations

Abstract

By using an analytically derived dynamical density response function of a unidirectional periodically modulated two-dimensional electron gas under a perpendicular magnetic field, we study the magnetoplasmon modes in this system within the random-phase approximation. It is found that the modulation potential does not introduce an additional low frequency mode nor cause high frequency magnetic oscillations in the principal magnetoplasmon mode, as has been previously reported. However, there exists a shift in the principal mode due to the modulation, and this shift is a slow oscillatory function of the inverse magnetic field.

Original language	English (US)
Pages (from-to)	1541-1544
Number of pages	4
Journal	Semiconductor Science and Technology
Volume	10
Issue number	11
DOIs	https://doi.org/10.1088/0268-1242/10/11/018
State	Published - Dec 1 1995
Externally published	Yes

ASJC Scopus subject areas

Materials Chemistry
Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering
Condensed Matter Physics

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10.1088/0268-1242/10/11/018

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abstract = "By using an analytically derived dynamical density response function of a unidirectional periodically modulated two-dimensional electron gas under a perpendicular magnetic field, we study the magnetoplasmon modes in this system within the random-phase approximation. It is found that the modulation potential does not introduce an additional low frequency mode nor cause high frequency magnetic oscillations in the principal magnetoplasmon mode, as has been previously reported. However, there exists a shift in the principal mode due to the modulation, and this shift is a slow oscillatory function of the inverse magnetic field.",

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AU - Zhang, C.

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PY - 1995/12/1

Y1 - 1995/12/1

N2 - By using an analytically derived dynamical density response function of a unidirectional periodically modulated two-dimensional electron gas under a perpendicular magnetic field, we study the magnetoplasmon modes in this system within the random-phase approximation. It is found that the modulation potential does not introduce an additional low frequency mode nor cause high frequency magnetic oscillations in the principal magnetoplasmon mode, as has been previously reported. However, there exists a shift in the principal mode due to the modulation, and this shift is a slow oscillatory function of the inverse magnetic field.

AB - By using an analytically derived dynamical density response function of a unidirectional periodically modulated two-dimensional electron gas under a perpendicular magnetic field, we study the magnetoplasmon modes in this system within the random-phase approximation. It is found that the modulation potential does not introduce an additional low frequency mode nor cause high frequency magnetic oscillations in the principal magnetoplasmon mode, as has been previously reported. However, there exists a shift in the principal mode due to the modulation, and this shift is a slow oscillatory function of the inverse magnetic field.

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DO - 10.1088/0268-1242/10/11/018

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VL - 10

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EP - 1544

JO - Semiconductor Science and Technology

JF - Semiconductor Science and Technology

IS - 11

ER -

Magnetoplasmons in modulated two-dimensional electronic systems

Abstract

ASJC Scopus subject areas

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