Electrical control of Kondo effect and superconducting transport in a side-gated InAs quantum dot Josephson junction

Details Electrical control of Kondo effect and superconducting transport in a side-gated InAs quantum dot Josephson junction Electrical control of Kondo effect and superconducting transport in a side-gated InAs quantum dot Josephson junction

2009-12-16

arxiv.org/abs/0912.3094v1

Phys. Rev. B 82, 054512 (2010)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Scientific paper

10.1103/PhysRevB.82.054512

We measure the non-dissipative supercurrent in a single InAs self-assembled quantum dot (QD) coupled to superconducting leads. The QD occupation is both tuned by a back-gate electrode and lateral side-gate. The geometry of the side-gate allows tuning of the QD-lead tunnel coupling in a region of constant electron number with appropriate orbital state. Using the side-gate effect we study the competition between Kondo correlations and superconducting pairing on the QD, observing a decrease in the supercurrent when the Kondo temperature is reduced below the superconducting energy gap in qualitative agreement with theoretical predictions.

Affiliated with

Also associated with

No associations

Rating

Electrical control of Kondo effect and superconducting transport in a side-gated InAs quantum dot Josephson junction does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Electrical control of Kondo effect and superconducting transport in a side-gated InAs quantum dot Josephson junction, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electrical control of Kondo effect and superconducting transport in a side-gated InAs quantum dot Josephson junction will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-48706