A TEM and RUM study of the inherent displacive flexibility of the fresnoite framework structure type

Withers, Raymond; Tabira, Y.; Liu, Yun; Hoche, Thomas

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A TEM and RUM study of the inherent displacive flexibility of the fresnoite framework structure type

Date

2002

Authors

Withers, Raymond

Tabira, Y.

Liu, Yun

Hoche, Thomas

Publisher

Springer

Abstract

A careful electron diffraction study has been made of the incommensurately modulated room-temperature phases of the fresnoites Ba2TiGe2O8 (BTG) and Ba2TiSi2O8 (BTS) and used to determine their (3 + 1)- and (3 + 2)-dimensional superspace group symmetries.