NRG study of the Kondo effect in the presence of itinerant-electron ferromagnetism

Details NRG study of the Kondo effect in the presence of itinerant-electron ferromagnetism NRG study of the Kondo effect in the presence of itinerant-electron ferromagnetism

2003-04-16

arxiv.org/abs/cond-mat/0304385v2

Phys. Rev. Lett. 91, 247202 (2003)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 4 figures

Scientific paper

10.1103/PhysRevLett.91.247202

The Kondo effect in quantum dots (QDs) - artificial magnetic impurities - attached to ferromagnetic leads is studied with the numerical renormalization group (NRG) method. It is shown that the QD level is spin-split due to presence of ferromagnetic electrodes, leading to a suppression of the Kondo effect. We find that the Kondo effect can be restored by compensating this splitting with a magnetic field. Although the resulting Kondo resonance then has an unusual spin asymmetry with a reduced Kondo temperature, the ground state is still a locally-screened state, describable by Fermi liquid theory and a generalized Friedel sum rule, and transport in the unitary limit is not spin dependent.

Affiliated with

Also associated with

No associations

Rating

NRG study of the Kondo effect in the presence of itinerant-electron ferromagnetism 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 NRG study of the Kondo effect in the presence of itinerant-electron ferromagnetism, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and NRG study of the Kondo effect in the presence of itinerant-electron ferromagnetism will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-10063