Structural and electrical properties of PbMoO4 under high pressure

Cuiling Yu, Qingjiang Yu, Chunxiao Gao, Bao Liu, Aimin Hao, Chunyuan He, Xiaowei Huang, Dongmei Zhang, Xiaoyan Cui, Dongmei Li, Hongwu Liu, Yanzhang Ma, Guangtian Zou

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Abstract

High pressure Raman spectra and in situ electrical conductivity measurement of scheelite-structure PbMoO4 have been conducted using a diamond anvil cell (DAC). The Raman spectra of powdered PbMoO4 were determined up to 26.5GPa under nonhydrostatic conditions. The results indicate that PbMoO4 undergoes a transition from crystal to amorphous phase with increasing pressure, and the phase-transition pressure was about 12.5GPa. The electrical conductivity of PbMoO4 as a function of pressure and temperature was studied using a designed DAC. The experimental results show that the electrical conductivity of PbMoO4 increases with increasing pressure and temperature. Compared with the electrical conductivity value of PbMoO4 at 7.4GPa and 430K, it increases by about two orders of magnitude at 26.5GPa and 430K.

Original languageEnglish
Article number425215
JournalJournal of Physics Condensed Matter
Volume19
Issue number42
DOIs
StatePublished - Oct 24 2007

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    Yu, C., Yu, Q., Gao, C., Liu, B., Hao, A., He, C., Huang, X., Zhang, D., Cui, X., Li, D., Liu, H., Ma, Y., & Zou, G. (2007). Structural and electrical properties of PbMoO4 under high pressure. Journal of Physics Condensed Matter, 19(42), [425215]. https://doi.org/10.1088/0953-8984/19/42/425215