Synthesis and characterization of the new high pressure phases ACu^sub 3^ V^sun 4^O^sub 12^(A=Gd, Tb, Er)

New ACu3V4O12 (A=Gd, Tb, Er) phases have been prepared at high pressure and high-temperature conditions (P ...8-9 GPa, T ...1000...C) in a toroid-type high pressure cell. These compounds crystallize in the cubic symmetry with a perovskite-like structure. At ambient pressure, they are paramagnetic an...

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Published in:High pressure research 2013-06, Vol.33 (2), p.418
Main Authors: Melnikova, N V, Kadyrova, N I, Ustinova, I S, Volkova, Ya Yu, Tyutyunnik, A P, Zaynulin, Yu G, Babushkin, A N, Korolev, A V
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Language:English
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Chemical compounds
Conductivity
Crystal structure
High temperature
Pressure
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container_title High pressure research
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creator Melnikova, N V
Kadyrova, N I
Ustinova, I S
Volkova, Ya Yu
Tyutyunnik, A P
Zaynulin, Yu G
Babushkin, A N
Korolev, A V
description New ACu3V4O12 (A=Gd, Tb, Er) phases have been prepared at high pressure and high-temperature conditions (P ...8-9 GPa, T ...1000...C) in a toroid-type high pressure cell. These compounds crystallize in the cubic symmetry with a perovskite-like structure. At ambient pressure, they are paramagnetic and have activation-type conductivity. The effect of high pressure (10-50 GPa) on the electrical properties of the materials was analyzed in the temperature range from 78 to 300 K. Pressure ranges of the transition from activation type to metallic conductivity have been determined. The crystal structure of ACu3V4O12 (A=Gd, Tb, Er) was found to be stable up to 50 GPa. (ProQuest: ... denotes formulae/symbols omitted.)
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subjects Chemical compounds
Conductivity
Crystal structure
High temperature
Pressure
title Synthesis and characterization of the new high pressure phases ACu^sub 3^ V^sun 4^O^sub 12^(A=Gd, Tb, Er)
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