Phys. Rev. B 44, 6554–6557 (1991)Nuclear-spin relaxation and spin excitons in a two-dimensional electron gas
The nuclear-spin relaxation in the vicinity of a two-dimensional electron channel is considered in terms of the creation and annihilation of spin excitons. This approach provides a qualitative picture of the competition between the inhomogeneity of the channel and the Coulomb repulsion of the electrons. The spin-flip processes are allowed energetically in the presence of the disorder. The e-e interaction suppresses the relaxation through the enhancement of the magnetic-field-induced spin splitting of the Landau level. © 1991 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevB.44.6554
DOI:
10.1103/PhysRevB.44.6554
PACS:
73.20.Dx, 76.30.Pk, 76.60.-k
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