Optical Spectrum of a Spin-Split Two-Dimensional Electron Gas
In this paper, we examine how spin-orbit interaction induced by the Rashba effect affects the optical spectrum of a two-dimensional electron gas (2DEG). The calculation is carried out on the basis of a standard random-phase approximation for electron-electron interaction. It is found that for a spin-split 2DEG, the spectrum of optical absorption depends strongly on two opticlike plasmon modes caused by inter-spin-orbit excitation. More interestingly, we find that the position and the width of...[Show more]
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|Source:||Physical Review B: Condensed Matter and Materials|
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