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.
@article{arxiv.1606.02527,
title = {Franck-Condon Blockade in a Single-Molecule Transistor},
author = {E. Burzurí and Y. Yamamoto and M. Warnock and X. Zhong and K. Park and A. Cornia and H. S. J. van der Zant},
journal= {arXiv preprint arXiv:1606.02527},
year = {2016}
}