Pressure-induced phase transition of wulfenite

被引：3
|
作者：
Liu Ying-Xin [1 ]
Qin Shan [1 ]
Wu Jing [1 ]
Li Xiao-Dong [2 ]
Li Yan-Chun [2 ]
Liu Jing [2 ]
机构：
[1] Peking Univ, Key Lab Orogen Belts & Crustal Evolut MOE, Dept Geol, Beijing 100871, Peoples R China
[2] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China
来源：
CHINESE PHYSICS C | 2009年 / 33卷 / 11期
关键词：
wulfenite; high-pressure; phase transition; synchrotron radiation; X-ray diffraction; DIFFRACTION; RAMAN;
D O I：
10.1088/1674-1137/33/11/019
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
The in-situ high-pressure structures of wulfenite have been investigated by means of angular dispersive X-ray diffraction with diamond anvil cell and synchrotron radiation. In the pressure up to 22.9 GPa, a pressure-induced scheelite-to-fergusonite transition is observed at about 10.6 GPa. The pressure dependence for the lattice parameters of wulfenite is reported, and the axial compression coefficients Ka(0) = -1.36 x 10(-3) GPa(-1) and Kc(0) = -2.78 x 10(-3) GPa(-1) are given. The room-temperature isothermal bulk modulus is also obtained by fitting the P-V data using the Murnaghan equation of state.
引用
收藏
页码：1023 / 1027
页数：5
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