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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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.

Original languageEnglish (US)
Pages (from-to)1510-1512
Number of pages3
JournalApplied Physics Letters
Volume60
Issue number12
DOIs
StatePublished - Dec 1 1992

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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    Zhao, Y., Tsui, D. C., Santos, M., Shayegan, M., Ghanbari, R. A., Antoniadis, D. A., & Smith, H. I. (1992). Magneto-optical absorption in a two-dimensional electron grid. Applied Physics Letters, 60(12), 1510-1512. https://doi.org/10.1063/1.107287