Spin excitations in an all-organic double quantum dot molecule
Mesoscale and Nanoscale Physics
2016-10-18 v1
Abstract
We realize a strongly coupled double quantum dot in a single all-organic molecule by introducing a non-conjugated bridge in between two identical conjugated moieties. Spin-1/2 Kondo and Kondo enhanced low-energy excitations for respectively the odd and even electron occupation are observed in off-resonant transport. The ground state in the even occupation can be the singlet or the triplet state varying between samples. This observation suggests that both anti-ferromagnetic and ferromagnetic interactions between spins are of the same order of magnitude.
Cite
@article{arxiv.1610.04715,
title = {Spin excitations in an all-organic double quantum dot molecule},
author = {Max Koole and Jan C. Hummelen and Herre S. J. van der Zant},
journal= {arXiv preprint arXiv:1610.04715},
year = {2016}
}