Yang, C.H.; Xu, Wen; Zeng, Z.; Tang, C S; Zhang, Chao
Using a Green's function approach on the basis of the random-phase approximation, we examine how the many-body effect such as exchange interaction affects the spin-splitting in a two-dimensional electron gas system in the presence of the Rashba spin-orbit interaction and Zeeman splitting and of quantizing magnetic fields. We show that such a many-body interaction can lower the energy levels of the system and enlarge the spin-splitting around the Fermi level. We also find that the...[Show more]
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