1. THz Quantum Hall Conductivity Studies in a GaAs Heterojunction
- Author
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A. V. Stier, H. Zhang, C. T. Ellis, D. Eason, G. Strasser, B. D. McCombe, J. Cerne, Jisoon Ihm, and Hyeonsik Cheong
- Subjects
Physics ,symbols.namesake ,Condensed matter physics ,Magnetoresistance ,Filling factor ,Terahertz radiation ,Faraday effect ,Cyclotron resonance ,symbols ,Heterojunction ,Quantum Hall effect ,Condensed Matter::Mesoscopic Systems and Quantum Hall Effect ,Magnetic field - Abstract
We report on Faraday rotation measurements in the THz regime of a two dimensional electron gas in the magnetic field region of cyclotron resonance. Clear steps at several filling factors in the Faraday rotation as a function of carrier density are interpreted as THz ac quantum Hall plateaus. Unlike the dc case, the steps are not quantized but they do depend on filling factor.
- Published
- 2011
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