Kondo effect and singlet-triplet splitting in coupled quantum dots in a magnetic field
Kondo effect and singlet-triplet splitting in coupled quantum dots in a magnetic field
We study the interplay between Kondo correlations and the singlet-triplet exchange splitting K between the two spins in a double quantum dot. We calculate the cotunneling current with elastic and inelastic contributions and its renormalization due to Kondo correlations, away and at the degeneracy point K = 0. We show …