Two-dimensional spin confinement in strained-layer quantum wells
Physical review. B, Condensed matter1990Vol. 42(14), pp. 9237–9240
Citations Over TimeTop 10% of 1990 papers
Abstract
We show that a two-dimensional spin system can occur for ``heavy,'' ${\mathit{m}}_{\mathit{J}}$=\ifmmode\pm\else\textpm\fi{}3/2 holes resulting from a reduction to tetragonal symmetry produced by biaxial strain or confinement in a quantum well. Evidence is produced from magnetotransport measurements on strained ${\mathrm{Ga}}_{1\mathrm{\ensuremath{-}}\mathit{x}}$${\mathrm{In}}_{\mathit{x}}$Sb/GaSb quantum wells, in which the spin splitting is determined only by the component of magnetic field in the growth direction, and from published work on unstrained GaAs/${\mathrm{Al}}_{\mathit{x}}$${\mathrm{Ga}}_{1\mathrm{\ensuremath{-}}\mathit{x}}$As heterojunctions. Complementary behavior is predicted for ``light'' holes.
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