Universality of the Kondo effect in quantum dots with ferromagnetic leads

Details Universality of the Kondo effect in quantum dots with ferromagnetic leads Universality of the Kondo effect in quantum dots with ferromagnetic leads

2011-04-29

arxiv.org/abs/1104.5699v1

Phys. Rev. Lett. 107, 176808 (2011)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 4 figures

Scientific paper

10.1103/PhysRevLett.107.176808

We investigate quantum dots in clean single-wall carbon nanotubes with ferromagnetic PdNi-leads in the Kondo regime. In most odd Coulomb valleys the Kondo resonance exhibits a pronounced splitting, which depends on the tunnel coupling to the leads and an external magnetic field $B$, and only weakly on gate voltage. Using numerical renormalization group calculations, we demonstrate that all salient features of the data can be understood using a simple model for the magnetic properties of the leads. The magnetoconductance at zero bias and low temperature depends in a universal way on $g \mu_B (B-B_c) / k_B T_K$, where $T_K$ is the Kondo temperature and $B_c$ the external field compensating the splitting.

Affiliated with

Also associated with

No associations

Rating

Universality of the Kondo effect in quantum dots with ferromagnetic leads 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 Universality of the Kondo effect in quantum dots with ferromagnetic leads, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Universality of the Kondo effect in quantum dots with ferromagnetic leads will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-18215