title: Reversible transition between thermodynamically stable phases with low density of oxygen vacancies on the SrTiO3(110) surface.
abstract: The surface reconstruction of SrTiO3(110) is studied with scanning tunneling microscopy and density functional theory (DFT) calculations. The reversible phase transition between (4×1) and (5×1) is controlled by adjusting the surface metal concentration [Sr] or [Ti]. Resolving the atomic structures of the surface, DFT calculations verify that the phase stability changes upon the chemical potential of Sr or Ti. In particular, the density of oxygen vacancies is low on the thermodynamically stabilized SrTiO3(110) surface.
authors.affiliation: Beijing National Laboratory for Condensed-Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China.
authors.forename: Fengmiao
authors.initials: F
authors.lastname: Li
authors.forename: Zhiming
authors.initials: Z
authors.lastname: Wang
authors.forename: Sheng
authors.initials: S
authors.lastname: Meng
authors.forename: Yongbao
authors.initials: Y
authors.lastname: Sun
authors.forename: Jinlong
authors.initials: J
authors.lastname: Yang
authors.forename: Qinlin
authors.initials: Q
authors.lastname: Guo
authors.forename: Jiandong
authors.initials: J
authors.lastname: Guo