Topological Spin and Valley Pumping in Silicene

13 May 2016 Luo Wei Sheng L. Wang B. G. Xing D. Y.

We propose an experimental scheme to realize adiabatic topological spin and valley pumping by using silicene subject to an in-plane $ac$ electric field with amplitude $E_{y}$ and a vertical electric field consisting of an electrostatic component and an $ac$ component with amplitudes $E_{z}^{0}$ and $E_{z}^{1}$. By tuning $E_{z}^{0}$ and $E_{z}^{1}$, topological valley pumping or spin-valley pumping can be achieved... (read more)

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  • MESOSCALE AND NANOSCALE PHYSICS