Pressure-induced phase transitions for goethite investigated by Raman spectroscopy and electrical conductivity

	Pressure-induced phase transitions for goethite investigated by Raman spectroscopy and electrical conductivity
	Kaixiang Liu; Lidong Dai; Heping Li; Haiying Hu; Yukai Zhuang; Linfei Yang; Chang Pu; Meiling Hong
	2019
发表期刊	High Pressure Research
页码	1-11
摘要	We reported two pressure-induced phase transitions of goethite up to ∼35 GPa using a diamond anvil cell in conjunction with ac impendence spectroscopy, Raman spectra at room temperature. The first pressure-induced phase transition at ∼7.0 GPa is manifested in noticeable changes in six Raman-active modes, two obvious splitting phenomena for the modes and the variations in the slope of conductivity. The second phase transition at ∼20 GPa was characterized by an obviously drop in electrical conductivity and the noticeable changes in the Raman-active modes. The variations in activation energy with increasing pressure were also discussed to reveal the electrical properties of goethite at high pressure.
关键词	Goethite high Pressure raman Spectroscopy electrical Conductivity phase Transition
收录类别	SCI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.gyig.ac.cn/handle/42920512-1/10555
专题	地球内部物质高温高压实验室
作者单位	1.Key Laboratory of High-Temperature and High-Pressure Study of the Earth’s Interior, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, Guizhou, People’s Republic of China 2.University of Chinese Academy of Sciences, Beijing, People’s Republic of China
推荐引用方式 GB/T 7714	Kaixiang Liu；Lidong Dai；Heping Li；Haiying Hu；Yukai Zhuang；Linfei Yang；Chang Pu；Meiling Hong. Pressure-induced phase transitions for goethite investigated by Raman spectroscopy and electrical conductivity[J]. High Pressure Research,2019:1-11.
APA	Kaixiang Liu；Lidong Dai；Heping Li；Haiying Hu；Yukai Zhuang；Linfei Yang；Chang Pu；Meiling Hong.(2019).Pressure-induced phase transitions for goethite investigated by Raman spectroscopy and electrical conductivity.High Pressure Research,1-11.
MLA	Kaixiang Liu；Lidong Dai；Heping Li；Haiying Hu；Yukai Zhuang；Linfei Yang；Chang Pu；Meiling Hong."Pressure-induced phase transitions for goethite investigated by Raman spectroscopy and electrical conductivity".High Pressure Research (2019):1-11.

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