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JOURNALS // Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki // Archive

Pis'ma v Zh. Èksper. Teoret. Fiz., 2001 Volume 74, Issue 5, Pages 300–303 (Mi jetpl4204)

This article is cited in 2 papers

CONDENSED MATTER

Cyclotron spin-wave in the 2D electron system

L. V. Kulikab, I. V. Kukushkinba, V. E. Kirpichevab, J. H. Smeta, K. von Klitzinga, V. Umanskiic, W. Wegscheiderd

a Max Planck Institute for Solid State Research
b Institute of Solid State Physics, Russian Academy of Sciences
c Braun Center for Submicron Research, Weizmann Institute of Science, Rehovot
d Walter Schottky Institut, Technische Universität München

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, $\nu \sim 0.1$, when the electron system is spin-depolarized. As long as the electron system becomes fully spin-polarized ($\nu > 0.2$) the cyclotron spin-wave disappears from the inelastic light scattering spectra. It reenters at electron filling factors $\nu > 1$. Over the range of electron filling factors of $1 < \nu < 2$ 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.

PACS: 73.40.Hm

Received: 31.07.2001

Language: English


 English version:
Journal of Experimental and Theoretical Physics Letters, 2001, 74:5, 270–273

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