Spin excitations in an all-organic double quantum dot molecule
arXiv:1610.04715 · doi:10.1103/PhysRevB.94.165414
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.
References in corpus (6)
- Dependence of Single Molecule Junction Conductance on Molecular Conformation
- Large tunable image-charge effects in single-molecule junctions
- Detection of a large valley-orbit splitting in silicon with two-donor spectroscopy
- Revealing the Atomic Site-Dependent g Factor within a Single Magnetic Molecule via the Extended Kondo Effect
- Inelastic cotunneling in quantum dots and molecules with weakly broken degeneracies
- Spin excitations in an all-organic double quantum dot molecule