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Magnetooptics at Γ and L Points of the Brillouin Zone and Magnetization Studies of Semimagnetic Semiconductors Cd1−xMnxTe and Zn1−xMnxTe with 0.01 < x < 0.73

  • D. Coquillat
  • J. P. Lascaray
  • A. Benhida
  • J. Deportes
  • A. K. Bhattacharjee
  • R. Triboulet
Conference paper
Part of the Springer Series in Solid-State Sciences book series (SSSOL, volume 87)

Abstract

Magnetization and magnetoreflectivity measurements at Γ point of B.Z. were performed in magnetic field up to 5.5T i) at 4.2K for 0.02 < x < 0.73. An anomalous behavior for high concentration is explained in terms of a second order perturbation calculation, ii) in temperature range 1.8K – 60K for 0.01 < x < 0.30. An important variation of values of ∆E/∣x<S z>∣ with temperature is observed. ∆E is the Zeeman splitting and x<S z> the average spin component. At L point of B.Z. the splitting of Elzstructure compared to splitting at Γ point is very small. A variation of exchange integrals with wavevector has been found necessary to explain the data.

Keywords

Brillouin Zone Circular Polarization Zeeman Splitting Exchange Integral Strong Component 
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Copyright information

© Springer-Verlag Berlin, Heidelberg 1989

Authors and Affiliations

  • D. Coquillat
    • 1
  • J. P. Lascaray
    • 1
  • A. Benhida
    • 1
  • J. Deportes
    • 2
  • A. K. Bhattacharjee
    • 3
  • R. Triboulet
    • 4
  1. 1.Groupe d’Etudes des Semiconducteurs (UA 357)Université des Sciences et Technique du LanguedocMontpellier CedexFrance
  2. 2.Centre National de la Recherche ScientifiqueLaboratoire Louis NéelGrenobleFrance
  3. 3.Laboratoire de Physique des SolidesUniversité Paris-SudOrsayFrance
  4. 4.Laboratoire de Physique des SolidesCNRSMeudonFrance

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