Collective modes in two- and three-dimensional electron systems with Rashba spin-orbit coupling
Collective modes in two- and three-dimensional electron systems with Rashba spin-orbit coupling
In addition to charge plasmons, a 2D electron system with Rashba-type spin-orbit coupling (SOC) also supports three collective modes in the spin sector: the chiral-spin modes. We study the dispersions of the charge and spin modes and their coupling to each other within a generalized random phase approximation for arbitrarily …