Oxygen-deficient strontium cobaltate, SrCoO2.64.
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.
Nakatsuka
Akihiko
A
Department of Advanced Materials Science and Engineering, Faculty of Engineering, Yamaguchi University, Ube 755-8611, Japan. tuka@po.cc.yamaguchi-u.ac.jp
Yoshiasa
Akira
A
Nakayama
Noriaki
N
Mizota
Tadato
T
Takei
Humihiko
H