Abstract
The temperature and density dependence of spin quantum beats of electrons is measured by time-resolved photoluminescence spectroscopy and yields the electron Landé g factor in bulk GaAs, InP, and CdTe. In GaAs the g factor increases linearly from -0.44 at 4 K to -0.30 at 280 K; in InP the g factor is 1.20 at 4 K, exhibiting a very small temperature dependence up to 160 K, and in CdTe the g factor follows between T=4 K and 240 K the empirical equation g=-1.653+4× T+2.8× . In GaAs we demonstrate the suppression of spin quantum beats due to Fermi blocking in a degenerate electron gas and measure an increase of the GaAs g factor from -0.44 at densities below 1× to -0.33 at . © 1996 The American Physical Society.
- Received 25 September 1995
DOI:https://doi.org/10.1103/PhysRevB.53.7911
©1996 American Physical Society