Contribution to the theory of spin relaxation at finite temperatures in the odd-filling quantum Hall effect regime

  • S. M. Dikman
  • S. V. Iordanskii
Condensed Matter


Spin relaxation in a two-dimensional electron gas (2D EG) is treated as the establishment of equilibrium in a gas of spin excitons as a result of processes that change the number of spin excitons. Coalescence is the dominant channel above a temperature of the order of 1 K. The coalescence of excitons can occurr as a result of spin-orbit and Coulomb interactions in the 2D EG. The rate of coalescence falls exponentially at low temperatures. The relaxation time is calculated, and the critical temperature below which the main annihilation process becomes that due to the exciton-phonon interaction is determined.

PACS numbers

73.40.Hm 71.10.Ca 


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Copyright information

© MAIK "Nauka/Interperiodica" 1999

Authors and Affiliations

  • S. M. Dikman
    • 1
  • S. V. Iordanskii
    • 2
  1. 1.Institute of Solid State PhysicsRussian Academy of SciencesChernogolovka, Moscow RegionRussia
  2. 2.L. D. Landau Institute of Theoretical PhysicsRussian Academy of SciencesMoscowRussia

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