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Spin susceptibility enhancement of a spin polarized two dimensional electron gas determined by Raman spectroscopy

  • F. Perez
  • , C. Aku-Leh
  • , B. Jusserand
  • , D. Richards
  • , G. Karczewski
  • CNRS, UMR 7588, INSP
  • King's College London
  • Institute of Physics of the Polish Academy of Sciences

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

We show Raman Scattering measurements by spin flip excitations of a spin polarized two-dimensional electron gas embedded in a doped CdMnTe quantum well. Depolarized Raman spectra exhibit a coexistence of the collective Spin Flip Wave and the Single Particle Spin Flip Excitation. At vanishing wavevector, we show that these excitations provide direct determination of Z, the bare and Z *, the enhanced Zeeman energies. We link these two quantities with recent magneto-transport measurement of the spin susceptibility enhancement due to Coulomb exchange and correlations.

Original languageEnglish
Title of host publicationPhysics of Semiconductors - 28th International Conference on the Physics of Semiconductors, ICPS 2006, Part A and B
Pages1295-1296
Number of pages2
DOIs
Publication statusPublished - 1 Dec 2007
Externally publishedYes
Event28th International Conference on the Physics of Semiconductors, ICPS 2006 - Vienna, Austria
Duration: 24 Jul 200628 Jul 2006

Publication series

NameAIP Conference Proceedings
Volume893
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference28th International Conference on the Physics of Semiconductors, ICPS 2006
Country/TerritoryAustria
CityVienna
Period24/07/0628/07/06

Keywords

  • Electronic Raman scattering
  • Semi-magnetic quantum well
  • Spin-polarized electron gas
  • Zeeman splitting

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