Abstract
Electron transport through a parallel double-quantum-dot structure is theoretically studied with one dot in the Kondo region and the other one in the region of local Rashba interaction. The coupling between the Kondo dot and the electron reservoirs is found to offer a reference channel for electron travels, and the connection of the Rashba dot and the leads is found to afford a resonant channel. The interplay of these two mechanisms gives rise to the Fano effect, which also depends on the adjustment of the Rashba field. We then conclude that in this structure, the Fano interference is more robust because it causes a quenching of the Kondo resonance. In the presence of a local magnetic flux, the quenched Kondo resonance becomes determined by the electron spin, which is helpful for spin manipulation.
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Shan, J., Wang, YG., Wang, Y. et al. Influence of Rashba spin-orbit coupling on Fano-Kondo effect in a parallel double-quantum-dot structure. Journal of the Korean Physical Society 64, 429–435 (2014). https://doi.org/10.3938/jkps.64.429
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DOI: https://doi.org/10.3938/jkps.64.429