Abstract
Time resolved pump-probe measurements of the spin relaxation rate in thick epilayers and bulk InSb have been carried out for a wide range of doping concentrations (intrinsic—2×1018 cm−3) and temperatures (20 to 300 K). Our results are consistent with the dominance of the Elliott–Yafet mechanism across a wide range of carrier concentrations and temperatures for which the electron energy is less than 100 meV.
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