title: Pressure-induced splitting and buckling of Cu-O chains in the low-dimensional structure of SrCuO2.
abstract: A pressure-induced splitting of the Cu-O chains was found in SrCuO2 at pressures >7 GPa and room temperature. The high-pressure phase is a superstructure of the infinite-layered tetragonal superconducting phase of SrCuO2 and is not stable under ambient conditions. The Cu-O chains buckle with further increasing pressure, and a new high-density polymorph of SrCuO2 is formed at 34.2 GPa.
authors.affiliation: Department of Geological Sciences, University of Michigan, Ann Arbor, Michigan 48109, USA.
authors.forename: Fuxiang
authors.initials: F
authors.lastname: Zhang
authors.forename: Jianwei
authors.initials: J
authors.lastname: Wang
authors.forename: Udo
authors.initials: U
authors.lastname: Becker
authors.forename: Jie
authors.initials: J
authors.lastname: Lian
authors.forename: Jingzhu
authors.initials: J
authors.lastname: Hu
authors.forename: Surendra
authors.initials: S
authors.lastname: Saxena
authors.forename: Rodney C
authors.initials: RC
authors.lastname: Ewing