Franck-Condon blockade in a single-molecule transistor.

Burzurí, Enrique; Yamamoto, Yoh; Warnock, Michael; Zhong, Xiaoliang; Park, Kyungwha; Cornia, Andrea; van der Zant, Herre S J · Nano Lett · 2014

basic_science · Level V

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Abstract

We investigate vibron-assisted electron transport in single-molecule transistors containing an individual Fe4 Single-Molecule Magnet. We observe a strong suppression of the tunneling current at low bias in combination with vibron-assisted excitations. The observed features are explained by a strong electron-vibron coupling in the framework of the Franck-Condon model supported by density-functional theory.