Density and Well-Width Dependence of the Spin Relaxation in n-InSb/AlInSb Quantum Wells
We have used time resolved spectroscopy to measure the relaxation of spin polarisation in InSb/AlInSb quantum wells as a function of temperature and mobility. The results are consistent with the degenerate D’Yakonov-Perel (DP) mechanism over the temperature range from 77K to 300K. The spin-diffusion length in this regime is shown to rise with well width and band gap, but is independent of density, mobility and spin lifetime, the effects of which cancel out.
KeywordsSpin Relaxation Spin Relaxation Rate Main Spin Degenerate Limit Effective Mass Ratio
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- 5.A. M. Gilbertson et al. In PreparationGoogle Scholar