The Fano-Rashba effect

Llorenç Serra, David Sáanchez
2007 Journal of Physics, Conference Series  
We analyze the linear conductance of a semiconductor quantum wire containing a region where a local Rashba spin-orbit interaction is present. We show that Fano lineshapes appear in the conductance due to the formation of quasi bound states which interfere with the direct transmission along the wire, a mechanism that we term the Fano-Rashba effect. We obtain the numerical solution of the full Schr\"odinger equation using the quantum-transmitting-boundary method. The theoretical analysis is
more » ... med using the coupled-channel model, finding an analytical solution by ansatz. The complete numerical solution of the coupled-channel equations is also discussed, showing the validity of the ansatz approach.
doi:10.1088/1742-6596/61/1/205 fatcat:yvcqndi2frgw5huysfdzfwuw4a