Pressure-induced phase transition of wulfenite

LIU Ying-Xin; QIN Shan; WU Jing; LI Xiao-Dong; LI Yan-Chun; LIU Jing

doi:10.1088/1674-1137/33/11/019

Chinese Physics C> 2009, Vol. 33> Issue(11) : 1023-1027 DOI: 10.1088/1674-1137/33/11/019

Pressure-induced phase transition of wulfenite

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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^－3GPa^－1 are given. The room-temperature isothermal bulk modulus is also obtained by fitting the P-V data using the Murnaghan equation of state.

References

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. Ganguly B N, Nicol M. Physica Status Solidi B, 1977,79(2): 6172. Jayaraman A, Batlogg B, VanUitert L G. Physical ReviewB, 1985, 31(8): 54233. Hazen R M, Finger L W, Mariathasan J W E. Journal of Physics and Chemistry of Solids, 1985, 46(2): 2534. Errandonea D, Pellicer-Porres J, Manjón F J et al. Physical Review B, 2006, 73: 2241035. YU Cui-Ling, YU Qing-Jiang, GAO Chun-Xiao et al. Chi-nese Physics Letters, 2007, 24(8): 22046. Nakamura T, Sugiyama K, Moriguchi E et al. Shigen-to-Sozai, 2002, 118: 2177. Barnett J D, Block S, Piermari G J. Review of Scientific Instrument, 1973, 44: 18. Hammersley A P, Svensson S O, Hanand M et al. HighPressure Research, 1996, 14: 2359. Holland T J B, Redfern S A T. Mineralogical Magazine,1997, 61: 6510. Besson J M, Itie J P, Polian A et al. Physical Review B,1991, 44: 421411. Errandonea D, Pellicer-Porres J, Manjón F J et al. PhysicalReview B, 2005, 72: 17410612. Errandonea D. Physica Status Solidi B, 2005, 242(14):R125

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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

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Received: 2008-12-18
Revised: 2009-03-30

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沈阳化工大学材料科学与工程学院沈阳 110142

Pressure-induced phase transition of wulfenite

Corresponding author: QIN Shan,

Received Date: 2008-12-18
Accepted Date: 2009-03-30
Available Online: 2009-11-05

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^－3GPa^－1 are given. The room-temperature isothermal bulk modulus is also obtained by fitting the P-V data using the Murnaghan equation of state.