Spin transport in a chain of polygonal quantum rings with Dresselhaus spin

Spin transport in a chain of polygonal quantum rings with Dresselhaus spin–orbit coupling

Tang Han-Zhao¹, Yao Xiao-Teng², Liu Jian-Jun^{2, 3, †}

(color online) The input electrons are taken to have s = ↑ in all cases. Spin conductance as a function of kl when a chain of hexagonal rings is connected along segments for (a) m = 3. Spin conductance as a function of kl when a chain of octagonal rings is connected along segments for (b) m = 3, (c) m = 4 and (d) m = 5 and the strength of the DSOC is α_D = 0.05 π. We use G₀ = 2e²/h as the unit of conductance.