Inelastic light scattering spectroscopy of electron systems in single and double quantum wells

Institute of Solid State Physics, Russian Academy of Sciences, Akademika Osip'yana str. 2, Chernogolovka, Moscow Region, 142432, Russian Federation

Inelastic light scattering is used to study the spectra of neutral excitations and magnetoexcitations in single and double quantum wells. New excitation branches of charge, spin, and charge-spin densities are observed. It is shown that various electron and phonon excitation modes interact with one another to form hybrid modes. Exchange and correlation corrections for the combined resonance energies in the integer and fractional Hall effects are estimated. The effect of a spatial inversion asymmetry on the excitation spectra of single-particle and collective excitations is considered.

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PACS: 73.21.−b, 73.22.−f, 73.43.Lp, 78.67.−n (all)
DOI: 10.1070/PU2006v049n04ABEH005885
Citation: Kulik L V, Kirpichev V E "Inelastic light scattering spectroscopy of electron systems in single and double quantum wells" Phys. Usp. 49 353–368 (2006)
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Оригинал: Кулик Л В, Кирпичев В Е «Спектроскопия неупругого рассеяния света электронных систем в одиночных и двойных квантовых ямах» УФН 176 365–382 (2006); DOI: 10.3367/UFNr.0176.200604b.0365

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