Single electron tunneling and level spectroscopy of isolated C60 molecules

Danny Porath, Oded Millo
1997 Journal of Applied Physics  
The interplay between single electron tunneling effects and the discrete molecular levels of C 60 molecules is studied using scanning tunneling microscopy. Isolated C 60 molecules were deposited onto a gold substrate, covered by a thin insulating layer. The tunneling current-voltage characteristics of isolated molecules, both at room temperature and at 4.2 K, exhibit rich structures, resulting from the interplay between charging effects and the electronic spectrum. In particular, we observe
more » ... neracy lifting within the C 60 molecular orbitals, probably due to the Jahn-Teller effect and local electric fields.
doi:10.1063/1.364275 fatcat:rjtiz63pgjgwtpe5m6wxkecgke