English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

We analyze the electronic transport through a quantum dot that contains amagnetic impurity. The coherent transport of electrons is governed by thequantum confinement inside the dot, but is also influenced by the exchangeinteraction with the impurity. The interplay between the two gives raise to thesinglet-triplet splitting of the energy levels available for the tunnelingelectron. In this paper, we focus on the charge fluctuations and, moreprecisely, the height of the conductance peaks. We show that the conductancepeaks corresponding to the triplet levels are three times higher than thosecorresponding to singlet levels, if electronic correlations are neglected (fornon-interacting dots, when an exact solution can be obtained). Next, weconsider the Coulomb repulsion and the many-body correlations. In this case,the singlet/triplet peak height ratio has a complex behavior. Usually thehighest peak corresponds to the state that is lowest in energy (ground state),regardless if it is singlet or triplet. In the end, we get an insight on theKondo regime for such a system, and show the formation of three Kondo peaks. Weuse the equation of motion method with appropriate decoupling.

Transport through quantum dots with magnetic impurities