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1. Pressure suppression of charge order without metallisation in Cs2Au2I6Electronic supplementary information (ESI) available: Tables of crystal structure parameters and derived bond distances for Cs2Au2I6at several pressures. See DOI: 10.1039/c0cc01708f.

Author

Kusmartseva, Anna F., Yang, Minghui, Arevalo-Lopez, Angel M., Kamenev, Konstantin V., and Attfield, J. Paul

Subjects
*X-ray diffraction, *AMORPHOUS substances, *CESIUM, *GOLD compounds, *PRESSURE, *CHEMICAL decomposition
Abstract

Resistivity and powder X-ray diffraction measurements on Cs2Au2I6up to 320 kbar pressure show that the suppression of Au+/Au3+charge order above 55 kbar results in a non-metallic phase containing localised Au2+states that is irreversibly amorphised above 120 kbar, and a gradual metallisation observed above 175 kbar may result from decomposition within the amorphous material. [ABSTRACT FROM AUTHOR]

Published
2010
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