Pressure-induced phase transition of wulfenite

被引：4

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

页码：1023 / 1027

页数：5

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