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Conduction Band States in AlP/GaP Quantum Wells

  • M. Goiran
  • M. P. Semtsiv
  • S. Dressler
  • W. T. Masselink
  • J. Galibert
  • G. Fedorov
  • D. Smirnov
  • V. V. Rylkov
  • J. Léotin
Part of the Springer Proceedings in Physics book series (SPPHY, volume 119)

Abstract

We report on the investigation of the conduction band (CB) of AlP by high magnetic field cyclotron resonance (CR) and transport in a two-dimensional electron gas (2DEG) confined in AlP/ GaP. We found that for QW width <4nm the ground state subband is a single Xz valley with cyclotron mass m z c /m0= 0.3±0.02, whereas, for wider QW, > 10nm thick, the ground state becomes twofold Xxy valleys with cyclotron mass m xy c /m0= 0.52±0.01. We conclude that the bulk AlP CB displays three ellipsoidal valleys having minima at the X point of the Brillouin zone (BZ) with transverse and longitudinal effective masses mt/m0 = 0.3±0.02 and ml/m0 = 0.9±0.02.

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Copyright information

© Springer Science+Business Media B.V 2008

Authors and Affiliations

  • M. Goiran
    • 1
  • M. P. Semtsiv
    • 2
  • S. Dressler
    • 2
  • W. T. Masselink
    • 2
  • J. Galibert
    • 1
  • G. Fedorov
    • 3
  • D. Smirnov
    • 3
  • V. V. Rylkov
    • 1
    • 4
  • J. Léotin
    • 1
  1. 1.LNCMPToulouseFrance
  2. 2.Department of PhysicsHumboldt-Universität BerlinBerlinGermany
  3. 3.NHMFLTallahasseeUSA
  4. 4.Russian Research Center «Kurchatov Institute»MoscowRussia

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