Electronically Driven Single-Molecule Switch on Silicon Dangling Bonds
Anja Nickel, Thomas Lehmann, Jörg Meyer, Frank Eisenhut, Robin Ohmann, Dmitry A. Ryndyk, Christian Joachim, Francesca Moresco, and G. Cuniberti
J. Phys. Chem. C, 27027 120 (2016)
We demonstrate that a single 4-acetylbiphenyl molecule adsorbed along the dimer row of a Si(100)-(2 × 1) surface can be reversibly switched between two stable conformations using the tunneling current of a scanning tunneling microscope. The experiment supported by density functional theory calculations demonstrates that the molecule by switching selectively passivates and depassivates a dangling-bond pair on the silicon surface, opening new routes for the logical input in dangling-bond-based atomic-scale circuits.