Non-Kondo zero bias anomaly in electronic transport through an ultra-small Si quantum dot

Details Non-Kondo zero bias anomaly in electronic transport through an ultra-small Si quantum dot Non-Kondo zero bias anomaly in electronic transport through an ultra-small Si quantum dot

1999-08-09

arxiv.org/abs/cond-mat/9908135v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 4 figure

Scientific paper

We have studied low-temperature single electron transport through ultra-small Si quantum dots. We find that at low temperatures Coulomb blockade is partially lifted at certain gate voltages. Furthermore, we observed an enhancement of differential conductance at zero bias. The magnetic field dependence of this zero bias anomaly is very different from the one reported in GaAs quantum dots, inconsistent with predictions for the Kondo effect.

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