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Density and Well-Width Dependence of the Spin Relaxation in n-InSb/AlInSb Quantum Wells

  • K. L. Litvinenko
  • B. N. Murdin
  • S. K. Clowes
  • L. Nikzad
  • J. Allam
  • C. R. Pidgeon
  • W. Branford
  • L. F. Cohen
  • T. Ashley
  • L. Buckle
Conference paper
Part of the Springer Proceedings in Physics book series (SPPHY, volume 119)

Abstract

We have used time resolved spectroscopy to measure the relaxation of spin polarisation in InSb/AlInSb quantum wells as a function of temperature and mobility. The results are consistent with the degenerate D’Yakonov-Perel (DP) mechanism over the temperature range from 77K to 300K. The spin-diffusion length in this regime is shown to rise with well width and band gap, but is independent of density, mobility and spin lifetime, the effects of which cancel out.

Keywords

Spin Relaxation Spin Relaxation Rate Main Spin Degenerate Limit Effective Mass Ratio 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media B.V 2008

Authors and Affiliations

  • K. L. Litvinenko
    • 1
  • B. N. Murdin
    • 1
  • S. K. Clowes
    • 1
  • L. Nikzad
    • 1
  • J. Allam
    • 1
  • C. R. Pidgeon
    • 2
  • W. Branford
    • 3
  • L. F. Cohen
    • 3
  • T. Ashley
    • 4
  • L. Buckle
    • 4
  1. 1.Advanced Technology InstituteUniversity of SurreyGuildfordUK
  2. 2.Department of PhysicsHeriot-Watt UniversityEdinburghUK
  3. 3.Blackett LaboratoryImperial CollegeLondonUK
  4. 4.QinetiQ LtdMalvernUK

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