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An efficient multiband envelope function approximation method for spintronics
We have developed an eight-band finite-difference envelope function approximation model capable of reproducing in almost all situations the true D 2d or C 2v symmetry of  grown zinc-blende heterostructures. We have used our model to study the relative contributions of the bulk inversion asymmetry (BIA) and structural inversion asymmetry to the spin splitting in the conduction band of asymmetric AlSb/GaSb/InAs/AlSb quantum wells, and clarify apparently contradictory statements about thedoi:10.1088/0957-4484/14/2/340 fatcat:ojmuy6ypazcgbfyoobvtvgmypm