Pressure Suppression of Charge Order without Metallisation in Cs2Au2l6

A. F. Kusmartseva; M. Yang; Angel Arevalo Lopez; Konstantin V. Kamenev; J. P. Attfield

doi:10.1039/c0cc01708f

Pressure Suppression of Charge Order without Metallisation in Cs₂Au₂l₆

A. F. Kusmartseva, M. Yang, Angel Arevalo Lopez, Konstantin V. Kamenev, J. P. Attfield

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

Abstract

Resistivity and powder X-ray diffraction measurements on Cs2Au2I6 up 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.

Original language	English
Pages (from-to)	6681-6683
Number of pages	3
Journal	Chemical Communications
Volume	46
Issue number	36
DOIs	https://doi.org/10.1039/c0cc01708f
Publication status	Published - Jan 2010

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abstract = "Resistivity and powder X-ray diffraction measurements on Cs2Au2I6 up 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. ",

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AB - Resistivity and powder X-ray diffraction measurements on Cs2Au2I6 up 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.

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Pressure Suppression of Charge Order without Metallisation in Cs₂Au₂l₆

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High Pressure Studies of Charge Ordered Materials

A new SQUID magnetometer for extreme conditions research

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Pressure Suppression of Charge Order without Metallisation in Cs2Au2l6

Abstract

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High Pressure Studies of Charge Ordered Materials

A new SQUID magnetometer for extreme conditions research

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Pressure Suppression of Charge Order without Metallisation in Cs₂Au₂l₆