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Volume 29 Issue 5
Dec 2015
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Chinese Journal of High Pressure Physics  > 2015  >  29(5): 363-368.
ZHANG Qing-Hua, WANG Min, TAN Guo-Long, KONG Pan-Pan, LI Yan-Chun, LI Xiao-Dong, LIU Jing, JIN Chang-Qing, YU Ri-Cheng. Structural Behavior of PbFe12O19 under Pressure[J]. Chinese Journal of High Pressure Physics, 2015, 29(5): 363-368. doi: 10.11858/gywlxb.2015.05.006
Citation: ZHANG Qing-Hua, WANG Min, TAN Guo-Long, KONG Pan-Pan, LI Yan-Chun, LI Xiao-Dong, LIU Jing, JIN Chang-Qing, YU Ri-Cheng. Structural Behavior of PbFe12O19 under Pressure[J]. Chinese Journal of High Pressure Physics, 2015, 29(5): 363-368. doi: 10.11858/gywlxb.2015.05.006
shu

Structural Behavior of PbFe12O19 under Pressure

doi: 10.11858/gywlxb.2015.05.006
  • 1.

    Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China

  • 2.

    State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China

  • 3.

    Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China

More Information
  • Author Bio:

    ZHANG Qing-Hua(1986—), male, bachelor, student, major in high-pressure structural transition and electron microscopy.E-mail:zhqh_wl@163.com

  • Corresponding author: YU Ri-Cheng(1964—), male, Ph.D, professor, major in high-pressure structural transition and electron microscopy.E-mail: rcyu@aphy.iphy.ac.cn
    Abstract
  • This work investigated the structural behavior of PbFe12O19 under high pressure by in situ angular dispersive X-ray diffraction (ADXD) measurements up to 55.3 GPa.The linear incompressibility Ba0=997(38) GPa and Bc0=556(22) GPa, and bulk modulus B0=254(8) GPa are obtained by fitting the Birch-Murnaghan equation of state with the unit-cell parameters versus pressure below 29.2 GPa.The anisotropic incompressibility can be attributed to the layered-stacking structure of PbFe12O19; the relative stiffness of PbFe12O19 can be ascribed to the dense atomic arrangement and the decreasing c/2a ratio.In addition, the ambient structure evolves to another structure above 42.7 GPa under compression and recovers below 32.3 GPa during releasing of pressure.

     

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