[18a-C310-1~10] 6.6 Probe Microscopy

△ [18a-C310-6] Tip-Induced Control of Charge and Molecular Bonding of Oxygen Atoms on the Rutile TiO₂ (110) Surface with Atomic Force Microscopy

〇(D)Yuuki Adachi¹, Huanfei Wen¹, Quanzhen Zhang¹, Masato Miyazaki¹, Yasuhiro Sugawara¹, Hongqian Sang², Jan Brndiar³, Lev Kantorovich², Ivan Stich³, Yanjun Li¹ (1.Osaka Univ., 2.Kings College London, 3.Slovak Academy of Sciences)

Keywords:Kelvin probe force microscopy, Titanium dioxide, Chagre manipulation

In this presentation, we succeeded controlling the simple chemical reaction (bonding, dissociation) and charge manipulation for oxygen molecules on the titanium dioxide surface using atomic force microscopy (AFM). Here we found bonding two atoms can be controlled by manipulating two electrons and the charge state of individual oxygen atoms can be controlled by manipulating one electron. The density functional theory suggests that the antibonding orbital present in the oxygen molecule is largely involved in this mechanism. These results demonstrate that electron plays a very important role in bonding atoms. We anticipate that our approach will prove useful for the investigation of the bond state and charge state for other of complex redox reactions and charging-related phenomena with subatomic resolution.