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The Fano-Rashba effect

Llorens Serra·David Sanchez
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Abstract

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 Schrödinger equation using the quantum-transmitting-boundary method. The theoretical analysis is performed 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.

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Llorens Serra, David Sanchez. 2006-10-05. The Fano-Rashba effect. https://doi.org/10.1088/1742-6596%2F61%2F1%2F205

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