The structure and composition of the 1/4{110} twin boundary in α-Zn7Sb2O12 were

determined by using quantitative high-angle annular dark field scanning

transmission electron microscopic (HAADF STEM) analysis. The noise in the

experimental images was reduced by using the maximum entropy method and

average processing, and the parameters used in dynamical simulations were

experimentally determined. From the analysis, it was found that octahedral sites in

the twin boundary slightly shift parallel to the [110] direction, and a reduction of

the Sb concentration at the octahedral sites on the plane adjacent to the twin

boundary was detected. The reduction was measured from three regions in the

same twin boundary, and the Sb concentrations were 4±3, 8±3 and 19±2at% from

33at%.

Quantitative Structural Analysis of Twin Boundary in α-Zn7Sb2O12 Using HAADF

STEM Method. K.Kuramochi, K.Suzuki, T.Yamazaki, K.Mitsuishi, K.Furuya,

I.Hashimoto, K.Watanabe: Ultramicroscopy, 2008, 109[1], 96-103