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- W2068020166 abstract "Electronic magneto-Raman scattering measurements of a high-density two-dimensional electron gas are presented. At low magnetic field strengths, wave vector appears to be conserved in the Raman process, with the smooth evolution of the excitation spectrum of the electron gas from that of a two-dimensional system to the Landau quantized system observed, in good agreement with the behavior predicted by linear response theory. However, at higher field strengths two Raman scattering mechanisms appear to operate. A wave-vector-conserving mechanism allows the observation of charge-density excitations, and in particular of Bernstein modes, identified from a comparison with theory. The Bernstein mode is observed in depolarized Raman scattering with an intensity significantly greater than that predicted. Raman scattering with no conservation of wave vector also occurs from excitations involving changes in Landau level quantum number n of up to $ensuremath{Delta}n=7.$" @default.
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- W2068020166 date "2000-03-15" @default.
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- W2068020166 title "Inelastic light scattering from inter-Landau level excitations in a two-dimensional electron gas" @default.
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- W2068020166 doi "https://doi.org/10.1103/physrevb.61.7517" @default.
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