Pressure-induced phase transition of wulfenite

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LIU Ying-Xin, QIN Shan, WU Jing, LI Xiao-Dong, LI Yan-Chun and LIU Jing. Pressure-induced phase transition of wulfenite[J]. Chinese Physics C, 2009, 33(11): 1023-1027. doi: 10.1088/1674-1137/33/11/019
LIU Ying-Xin, QIN Shan, WU Jing, LI Xiao-Dong, LI Yan-Chun and LIU Jing. Pressure-induced phase transition of wulfenite[J]. Chinese Physics C, 2009, 33(11): 1023-1027.  doi: 10.1088/1674-1137/33/11/019 shu
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Received: 2008-12-18
Revised: 2009-03-30
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Pressure-induced phase transition of wulfenite

    Corresponding author: QIN Shan,

Abstract: 

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 Ka0=-1.36×10-3 GPa-1 and Kc0= -2.78×10-3 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.

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