Observation of the underscreened Kondo effect in a molecular transistor

Details Observation of the underscreened Kondo effect in a molecular transistor Observation of the underscreened Kondo effect in a molecular transistor

2009-10-06

arxiv.org/abs/0910.1092v2

Phys. Rev. Lett. 103, 197202 (2009)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 3 figures, with supplementary information file (3 pages, 3 figures). Minor corrections in V2, as published

Scientific paper

We present the first quantitative experimental evidence for the underscreened Kondo effect, an uncomplete compensation of a quantized magnetic moment by conduction electrons, as originally proposed by Nozieres and Blandin. The device consists of an even charge spin S = 1 molecular quantum dot, obtained by electromigration of C60 molecules into gold nanogaps and operated in a dilution fridge. The persistence of logarithmic singularities in the low temperature conductance is demonstrated by a comparison to the fully screened configuration obtained in odd charge spin S = 1/2 Coulomb diamonds. We also discover an extreme sensitivity of the underscreened Kondo resonance to magnetic field, that we confirm on the basis of numerical renormalization group calculations.

Affiliated with

Also associated with

No associations

Rating

Observation of the underscreened Kondo effect in a molecular transistor 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 Observation of the underscreened Kondo effect in a molecular transistor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Observation of the underscreened Kondo effect in a molecular transistor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-35024