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Spectroscopy of Landau transitions of two-dimensional electron gases |
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| Authors: | JM Worlock A Pinczuk ZJ Tien CH Perry H Störmer R Dingle AC Gossard W Wiegmann RL Aggarwal |
| Institution: | 1. Department of Physics, Northeastern University, Boston, Massachusetts, U.S.A.;2. National Magnet Laboratory, Cambridge, Massachusetts, U.S.A.;3. Francis Bitter National Magnet Laboratory, Cambridge, Massachusetts, U.S.A.;4. Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts, U.S.A. |
| Abstract: | We have employed resonant inelastic light scattering spectroscopy to study electronic transitions in multilayer two-dimensional electron gases in magnetic fields of 4–14 T. From polarized spectra, we have evidence for both single particle Landau transitions (Δl = 1 and Δl = 2) as well as their collective counterparts. We show the variation of intensities with B and the resonant behavior, but are unable to identify a scattering mechanism. |
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