Kondo effect in quantum dots coupled to ferromagnetic leads

Details Kondo effect in quantum dots coupled to ferromagnetic leads Kondo effect in quantum dots coupled to ferromagnetic leads

2002-09-30

arxiv.org/abs/cond-mat/0210006v2

Phys. Rev. Lett. 91, 127203 (2003)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

5 pages, 2 figures

Scientific paper

10.1103/PhysRevLett.91.127203

We study the Kondo effect in a quantum dot which is coupled to ferromagnetic leads and analyse its properties as a function of the spin polarization of the leads. Based on a scaling approach we predict that for parallel alignment of the magnetizations in the leads the strong-coupling limit of the Kondo effect is reached at a finite value of the magnetic field. Using an equation-of-motion technique we study nonlinear transport through the dot. For parallel alignment the zero-bias anomaly may be split even in the absence of an external magnetic field. For antiparallel spin alignment and symmetric coupling, the peak is split only in the presence of a magnetic field, but shows a characteristic asymmetry in amplitude and position.

Affiliated with

Also associated with

No associations

Rating

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

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-530179