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Letter

Nature Materials 7, 194–197 (1 March 2008) | doi:10.1038/nmat2100

Tuning fulleride electronic structure and molecular ordering via variable layer index

Yayu Wang , Ryan Yamachika , Andre Wachowiak , Michael Grobis & Michael F. Crommie

C60 fullerides are uniquely flexible molecular materials that exhibit a rich variety of behaviour, including superconductivity and magnetism in bulk compounds, novel electronic and orientational phases in thin films and quantum transport in a single-C60 transistor. The complexity of fulleride properties stems from the existence of many competing interactions, such as electron–electron correlations, electron–vibration coupling and intermolecular hopping.