title: Inducing Transient Charge State of a Single Water Cluster on Cu(111) Surface.
abstract: The hydrated electron on solid surface is a crucial species to interfacial chemistry. We present a joint low-temperature scanning tunneling microscopy and density functional theory investigation to explore the existence of a transient hydrated electron state induced by injecting tunneling electrons into a single water nonamer cluster on Cu(111) surface. The directional diffusion of water cluster under the Coulomb repulsive potential has been observed as evidence for the emergence of the transient hydrated electron. A critical structure transformation in water cluster for the emergence of hydrated electron has been identified. A charging mechanism has been proposed based on density functional theory calculation and scanning tunneling microscope results.
authors.affiliation: Beijing National Laboratory for Condensed-Matter Physics and Institute of Physics, Chinese Academy of Sciences , Beijing 100190, People's Republic of China.
authors.forename: Yang
authors.initials: Y
authors.lastname: Guo
authors.affiliation: Beijing National Laboratory for Condensed-Matter Physics and Institute of Physics, Chinese Academy of Sciences , Beijing 100190, People's Republic of China.
authors.forename: Zijing
authors.initials: Z
authors.lastname: Ding
authors.affiliation: Beijing National Laboratory for Condensed-Matter Physics and Institute of Physics, Chinese Academy of Sciences , Beijing 100190, People's Republic of China.
authors.forename: Lihuan
authors.initials: L
authors.lastname: Sun
authors.affiliation: Beijing National Laboratory for Condensed-Matter Physics and Institute of Physics, Chinese Academy of Sciences , Beijing 100190, People's Republic of China.
authors.forename: Jianmei
authors.initials: J
authors.lastname: Li
authors.affiliation: Beijing National Laboratory for Condensed-Matter Physics and Institute of Physics, Chinese Academy of Sciences , Beijing 100190, People's Republic of China.|Collaborative Innovation Center of Quantum Matter , Beijing 100190, People's Republic of China.
authors.forename: Sheng
authors.initials: S
authors.lastname: Meng
authors.affiliation: Beijing National Laboratory for Condensed-Matter Physics and Institute of Physics, Chinese Academy of Sciences , Beijing 100190, People's Republic of China.|Collaborative Innovation Center of Quantum Matter , Beijing 100190, People's Republic of China.
authors.forename: Xinghua
authors.initials: X
authors.lastname: Lu
keywords: Cu(111) surface; charge state; density functional theory; hydrated electron; scanning tunneling microscopy; water cluster