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Modelling of Optical Detection of Spin-Polarized Carrier Injection into Light-Emitting Devices

M. C. de Oliveira·He Bi Sun
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Abstract

We investigate the emission of multimodal polarized light from Light Emitting Devices due to spin-aligned carriers injection. The results are derived through operator Langevin equations, which include thermal and carrier-injection fluctuations, as well as non-radiative recombination and electronic g-factor temperature dependence. We study the dynamics of the optoelectronic processes and show how the temperature-dependent g-factor and magnetic field affect the polarization degree of the emitted light. In addition, at high temperatures, thermal fluctuation reduces the efficiency of the optoelectronic detection method for measuring spin-polarization degree of carrier injection into non-magnetic semicondutors.

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M. C. de Oliveira, He Bi Sun. 2004-01-10. Modelling of Optical Detection of Spin-Polarized Carrier Injection into Light-Emitting Devices. https://doi.org/10.1103/physrevb.69.085322

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