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Cyclotron spin-wave in the 2D electron system

Abstract

The cyclotron spin-wave mode of a two-dimensional electron system have been investigated by inelastic light scattering. It is observed at small electron filling factors, (v∼0.1, when the electron system is spin-depolarized. As long as the electron system becomes fully spin-polarized (v>0.2), the cyclotron spin-wave disappears from the inelastic light scattering spectra. It reenters at electron filling factors v>1. Over the range of electron filling factors of 1<v<2, the cyclotron spin-wave energy is insensitive to both the experimentally accessible in-plane momenta and the electron concentration, whereas its inelastic light scattering efficiency is strongly influenced by the spin polarization of the electron system.

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From Pis’ma v Zhurnal Éksperimental’no\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) i Teoretichesko\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) Fiziki, Vol. 74, No. 5, 2001, pp. 300–303.

Original English Text Copyright © 2001 by Kulik, Kukushkin, Kirpichev, Smet, von Klitzing, Umansky, Wegscheider.

This article was submitted by the authors in English.

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Kulik, L.V., Kukushkin, I.V., Kirpichev, V.E. et al. Cyclotron spin-wave in the 2D electron system. Jetp Lett. 74, 270–273 (2001). https://doi.org/10.1134/1.1417164

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  • DOI: https://doi.org/10.1134/1.1417164

PACS numbers

  • 75.30.Ds
  • 73.20.−r