arxiv: 1610.04715 · v1 · pith:IO57LHMKnew · submitted 2016-10-15 · ❄️ cond-mat.mes-hall

Spin excitations in an all-organic double quantum dot molecule

Max Koole , Jan C. Hummelen , Herre S.J. van der Zant This is my paper

classification ❄️ cond-mat.mes-hall

keywords all-organicdoubleevenexcitationskondomoleculeoccupationquantum

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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.

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Spin excitations in an all-organic double quantum dot molecule

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