title: Oxygen-deficient strontium cobaltate, SrCoO2.64.
abstract: Single crystals of strontium cobaltate, SrCoO(3-x), have been grown by the floating-zone method in an oxygen flow. The compound crystallizes with the cubic perovskite structure, with Pm-3m symmetry, as determined by X-ray diffraction. Refinement of the O-atom site occupancy yields the chemical composition SrCoO(2.64) [x = 0.36 (3)]. The anisotropic displacement ellipsoids of the O atoms suggest that their positional disorder occurs in a direction perpendicular to that of the Co-O bonds.
authors.affiliation: Department of Advanced Materials Science and Engineering, Faculty of Engineering, Yamaguchi University, Ube 755-8611, Japan. tuka@po.cc.yamaguchi-u.ac.jp
authors.forename: Akihiko
authors.initials: A
authors.lastname: Nakatsuka
authors.forename: Akira
authors.initials: A
authors.lastname: Yoshiasa
authors.forename: Noriaki
authors.initials: N
authors.lastname: Nakayama
authors.forename: Tadato
authors.initials: T
authors.lastname: Mizota
authors.forename: Humihiko
authors.initials: H
authors.lastname: Takei