title: Adsorption of O_{2} on Ag(111): Evidence of Local Oxide Formation.
abstract: The atomic structure of the disordered phase formed by oxygen on Ag(111) at low coverage is determined by a combination of low-temperature scanning tunneling microscopy and density functional theory. We demonstrate that the previous assignment of the dark objects in STM to chemisorbed oxygen atoms is incorrect and incompatible with trefoil-like structures observed in atomic-resolution images in current work. In our model, each object is an oxidelike ring formed by six oxygen atoms around the vacancy in Ag(111).
authors: A.M.Prokhorov General Physics Institute, Russian Academy of Sciences, ulitsa Vavilova 38, 119991 Moscow, Russia.
authors: B V
authors: BV
authors: Andryushechkin
authors: A.M.Prokhorov General Physics Institute, Russian Academy of Sciences, ulitsa Vavilova 38, 119991 Moscow, Russia.
authors: V M
authors: VM
authors: Shevlyuga
authors: A.M.Prokhorov General Physics Institute, Russian Academy of Sciences, ulitsa Vavilova 38, 119991 Moscow, Russia.
authors: T V
authors: TV
authors: Pavlova
authors: A.M.Prokhorov General Physics Institute, Russian Academy of Sciences, ulitsa Vavilova 38, 119991 Moscow, Russia.|G.K.Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences, Prospect Lavrentieva 5,630090 Novosibirsk, Russia.
authors: G M
authors: GM
authors: Zhidomirov
authors: A.M.Prokhorov General Physics Institute, Russian Academy of Sciences, ulitsa Vavilova 38, 119991 Moscow, Russia.
authors: K N
authors: KN
authors: Eltsov