The Anderson transition in two dimensions in the presence of spin-orbit coupling

Publisher Website
Google Scholar
Abstract
The authors study a spin-one-half tight-binding Hamiltonian that includes both a random potential (independent of spin) and spin-orbit couplings. They find numerical evidence for one-parameter scaling and an Anderson transition at a critical value of the disorder. The results agree with perturbation theory for weak disorder and recent rigorous results for strong disorder. In the absence of potential scattering a divergent localisation length of the band centre is found but no apparent divergence in the density of states.