title: Orientation domains in vacancy-ordered titanium monoxide.
abstract: This paper presents a study on orientation domains in the vacancy-ordered titanium monoxide TiO(x). Transmission electron microscopy analysis revealed the co-existence of 12 possible TiO(x) monoclinic domain variants, which are induced by the cubic-to-monoclinic phase transition attributed to the Ti and O vacancy ordering. These 12 monoclinic domain variants which are predicted by group theory might be randomly arranged. Furthermore, several hours of electron beam irradiation can lead to the vacancy ordering-disordering transition (i.e. monoclinic-to-cubic phase transformation) in TiO(x). Our results shed light on the structural characteristics in TiO(x) nanostructures and thus contribute to the fabrication and design of the related nanostructures.
authors.affiliation: School of Physics and Technology, Center for Electron Microscopy and MOE Key Laboratory of Artificial Micro- and Nano-structures, Wuhan University, Wuhan 430072, People's Republic of China.
authors.forename: Cong
authors.initials: C
authors.lastname: Guo
authors.forename: Shuangfeng
authors.initials: S
authors.lastname: Jia
authors.forename: Weiwei
authors.initials: W
authors.lastname: Meng
authors.forename: He
authors.initials: H
authors.lastname: Zheng
authors.forename: Lei
authors.initials: L
authors.lastname: Jin
authors.forename: Yong
authors.initials: Y
authors.lastname: Liu
authors.forename: Jing
authors.initials: J
authors.lastname: Shi
authors.forename: Jianbo
authors.initials: J
authors.lastname: Wang
keywords: nanostructures; orientation domains; phase transitions; vacancy ordering