High-pressure phase transitions in the 6H perovskitesBa3MSb2O9(M =Mg, Ni, Zn)

P. D. Battle; C. W. Jones; P. Lightfoot; R. Strange

doi:10.1016/S0022-4596(05)80069-6

High-pressure phase transitions in the 6H perovskitesBa₃MSb₂O₉(M =Mg, Ni, Zn)

P. D. Battle^*, C. W. Jones, P. Lightfoot, R. Strange

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

Abstract

The 6H perovskitesBa₃MSb₂O₉(M =Mg, Ni, Zn)have been subjected to pressures of up to 5.5 GPa. No structural phase transitions were observed in Ba₃MgSb₂O₉. Ba₃NiSb₂O₉ transformed from a phase containing Sb₂O₉ dimers formed by face-sharing octahedra into a phase containing NiSbO₉ dimers. This was confirmed by a combination of X-ray powder diffraction and EXAFS. Ba₃ZnSb₂O₉ transformed into a cubic perovskite with a partial ordering of zinc and antimony over the octahedral sites.

Original language	English
Pages (from-to)	144-150
Number of pages	7
Journal	Journal of Solid State Chemistry
Volume	85
Issue number	1
DOIs	https://doi.org/10.1016/S0022-4596(05)80069-6
Publication status	Published - 1 Jan 1990

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abstract = "The 6H perovskitesBa3MSb2O9(M =Mg, Ni, Zn)have been subjected to pressures of up to 5.5 GPa. No structural phase transitions were observed in Ba3MgSb2O9. Ba3NiSb2O9 transformed from a phase containing Sb2O9 dimers formed by face-sharing octahedra into a phase containing NiSbO9 dimers. This was confirmed by a combination of X-ray powder diffraction and EXAFS. Ba3ZnSb2O9 transformed into a cubic perovskite with a partial ordering of zinc and antimony over the octahedral sites.",

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AU - Battle, P. D.

AU - Jones, C. W.

AU - Lightfoot, P.

AU - Strange, R.

PY - 1990/1/1

Y1 - 1990/1/1

N2 - The 6H perovskitesBa3MSb2O9(M =Mg, Ni, Zn)have been subjected to pressures of up to 5.5 GPa. No structural phase transitions were observed in Ba3MgSb2O9. Ba3NiSb2O9 transformed from a phase containing Sb2O9 dimers formed by face-sharing octahedra into a phase containing NiSbO9 dimers. This was confirmed by a combination of X-ray powder diffraction and EXAFS. Ba3ZnSb2O9 transformed into a cubic perovskite with a partial ordering of zinc and antimony over the octahedral sites.

AB - The 6H perovskitesBa3MSb2O9(M =Mg, Ni, Zn)have been subjected to pressures of up to 5.5 GPa. No structural phase transitions were observed in Ba3MgSb2O9. Ba3NiSb2O9 transformed from a phase containing Sb2O9 dimers formed by face-sharing octahedra into a phase containing NiSbO9 dimers. This was confirmed by a combination of X-ray powder diffraction and EXAFS. Ba3ZnSb2O9 transformed into a cubic perovskite with a partial ordering of zinc and antimony over the octahedral sites.

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IS - 1

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High-pressure phase transitions in the 6H perovskitesBa₃MSb₂O₉(M =Mg, Ni, Zn)

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