Transport via coupled states in a C 60 peapod quantum dot

Anders Eliasen (1) , Jens Paaske (1) , Karsten Flensberg (2, 1) , Sebastian Smerat (3, 4, 5) , Martin Leijnse (1, 4, 5) , Maarten Wegewijs (6, 4, 5) , Henrik Jørgensen (1) , Marc Monthioux (7) , Jesper Nygård (1)

1 UCPH - University of Copenhagen = Københavns Universitet
2 Nano-Science Center [Copenhagen]
3 LMU - Ludwig Maximilian University [Munich] = Ludwig Maximilians Universität München
4 Institut für Theoretische Physik A
5 JARA - JARA Fundamentals of Future Information Technology, RWTH Aachen University, 52056 Aachen, Germany
6 Max-Planck-Institut für Festkörperforschung
7 CEMES-M3 - Matériaux Multi-fonctionnels et Multi-échelles

We have measured systematic repetitions of avoided crossings in low temperature three-terminal transport through a carbon nanotube with encapsulated C60 molecules. We show that this is a general effect of the hybridization of a host quantum dot with an impurity. The well-defined nanotube allows identification of the properties of the impurity, which we suggest to be a chain of C60 molecules inside the nanotube. This electronic coupling between the two subsystems opens the interesting and potentially useful possibility of contacting the encapsulated molecules via the tube.

Domaines: Science des matériaux [cond-mat.mtrl-sci]

Anders Eliasen, Jens Paaske, Karsten Flensberg, Sebastian Smerat, Martin Leijnse, et al.. Transport via coupled states in a C 60 peapod quantum dot. Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2010, 81 (15), ⟨10.1103/PhysRevB.81.155431⟩. ⟨hal-02106221⟩