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VOLUME 47 (1988) | ISSUE 8 | PAGE 407
Optical orientation of electrons and holes in semiconductor superlattices
A study has been made of the effect of longitudinal and transverse magnetic fields on the optical orientation of the spins of free carriers in a GaAs/AlGaAs superlattice. The increase in the degree of spin polarization of photoelectrons in a classical longitudinal magnetic field is explained on the basis of a suppression of spin relaxation caused by a splitting of an electron miniband which is linear in k.