Magneto-optical absorption in a two-dimensional electron grid

Y. Zhao; D. C. Tsui; M. Santos; M. Shayegan; R. A. Ghanbari; D. A. Antoniadis; Henry I. Smith

doi:10.1063/1.107287

Magneto-optical absorption in a two-dimensional electron grid

Y. Zhao, D. C. Tsui, M. Santos, M. Shayegan, R. A. Ghanbari, D. A. Antoniadis, Henry I. Smith

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33 Scopus citations

Abstract

We have fabricated a two-dimensional (2D) electron grid in the high mobility GaAs/Al_0.35Ga_0.65As heterostructure and observed, in the magneto-optical absorption, new resonances and an anomalous dispersion, similar to that recently reported by Kern et al.¹ in antidots in a high density InGaAs/AlInAs heterostructure. We have studied their dependencies on the 2D electron density and demonstrate their plasma origin. The anomaly in magnetic field dependence is explained by the mixing of cyclotron resonance and edge magnetoplasma modes in this 2D electron microstructure.

Original language	English (US)
Pages (from-to)	1510-1512
Number of pages	3
Journal	Applied Physics Letters
Volume	60
Issue number	12
DOIs	https://doi.org/10.1063/1.107287
State	Published - 1992

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

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10.1063/1.107287

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title = "Magneto-optical absorption in a two-dimensional electron grid",

abstract = "We have fabricated a two-dimensional (2D) electron grid in the high mobility GaAs/Al0.35Ga0.65As heterostructure and observed, in the magneto-optical absorption, new resonances and an anomalous dispersion, similar to that recently reported by Kern et al.1 in antidots in a high density InGaAs/AlInAs heterostructure. We have studied their dependencies on the 2D electron density and demonstrate their plasma origin. The anomaly in magnetic field dependence is explained by the mixing of cyclotron resonance and edge magnetoplasma modes in this 2D electron microstructure.",

author = "Y. Zhao and Tsui, {D. C.} and M. Santos and M. Shayegan and Ghanbari, {R. A.} and Antoniadis, {D. A.} and Smith, {Henry I.}",

year = "1992",

doi = "10.1063/1.107287",

language = "English (US)",

volume = "60",

pages = "1510--1512",

journal = "Applied Physics Letters",

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T1 - Magneto-optical absorption in a two-dimensional electron grid

AU - Zhao, Y.

AU - Tsui, D. C.

AU - Santos, M.

AU - Shayegan, M.

AU - Ghanbari, R. A.

AU - Antoniadis, D. A.

AU - Smith, Henry I.

PY - 1992

Y1 - 1992

N2 - We have fabricated a two-dimensional (2D) electron grid in the high mobility GaAs/Al0.35Ga0.65As heterostructure and observed, in the magneto-optical absorption, new resonances and an anomalous dispersion, similar to that recently reported by Kern et al.1 in antidots in a high density InGaAs/AlInAs heterostructure. We have studied their dependencies on the 2D electron density and demonstrate their plasma origin. The anomaly in magnetic field dependence is explained by the mixing of cyclotron resonance and edge magnetoplasma modes in this 2D electron microstructure.

AB - We have fabricated a two-dimensional (2D) electron grid in the high mobility GaAs/Al0.35Ga0.65As heterostructure and observed, in the magneto-optical absorption, new resonances and an anomalous dispersion, similar to that recently reported by Kern et al.1 in antidots in a high density InGaAs/AlInAs heterostructure. We have studied their dependencies on the 2D electron density and demonstrate their plasma origin. The anomaly in magnetic field dependence is explained by the mixing of cyclotron resonance and edge magnetoplasma modes in this 2D electron microstructure.

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DO - 10.1063/1.107287

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SP - 1510

EP - 1512

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 12

ER -

Magneto-optical absorption in a two-dimensional electron grid

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