Spin magneto-transport in a Rashba–Dresselhaus quantum channel with single and double finger gates

Abstract

We address spin-resolved electronic transport properties in a Rashba–Dresselhaus quantum channel in the presence of an in-plane magnetic field. The strong Rashba–Dresselhaus effect induces an asymmetric spin-splitting energy spectrum with a spin–orbit–Zeeman gap. This asymmetric fact in energy spectrum may result in various quantum dynamic features in conductance due to the presence of finger gates. This asymmetric spin-splitting energy spectrum results in a bound state in continuum for electrons within ultralow energy regime with binding energies in order of 10−1 meV.