Energy dispersion of the electrosubbands in parabolic confining quantum wires:interplay of Rashba, Dresselhaus, lateral spin–orbit interaction and the Zeemaneffect

Abstract

We have made a thorough theoretical investigation of the interplay of spin–orbitinteractions (SOIs) resulting from Rashba, Dresselhaus and the lateral parabolic confiningpotential on the energy dispersion relation of the spin subbands in a parabolic quantumwire. The influence of an applied external magnetic field is also discussed. We show theinterplay of different types of SOI, as well as the Zeeman effect, leads to rather complexand intriguing electrosubbands for different spin branches. The effect of differentcoupling strengths and different magnetic field strengths is also investigated.