A new cell for X-ray absorption spectroscopy study under high pressure

ZHENG Li-Rong; CHE Rong-Zheng; LIU Jing; DU Yong-Hua; ZHOU Ying-Li; HU Tian-Dou

doi:10.1088/1674-1137/33/8/020

Chinese Physics C> 2009, Vol. 33> Issue(8) : 701-705 DOI: 10.1088/1674-1137/33/8/020

A new cell for X-ray absorption spectroscopy study under high pressure

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Abstract：
X-ray absorption fine structure (XAFS) spectroscopy is a powerful technique for the investigation of the local environment around selected atoms in condensed matter. XAFS under pressure is an important method for the synchrotron source. We design a cell for a high pressure XAFS experiment. Sintered boron carbide is used as the anvils of this high pressure cell in order to obtain a full XAFS spectrum free from diffraction peaks. In addition, a hydraulic pump was adopted to make in-suit pressure modulation. High quality XAFS spectra of ZrH₂ under high pressure (up to 13 GPa) were obtained by this cell.

References

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. Mujica A, Munoz A, Rubio A, Needs R J. Rev. Mod. Phys.,2003, 75: 8632. Katayama Y, Tsuji K. J. Phys.: Condens. Matter, 2003,15: 60853. Koningsberger D, Prins R. X-ray absorption: Princi-ples, Applications, Techniques of EXAFS, SEXAFS and XANES. New York: John Wiley and Sons Inc., 19884. Soldo Y, Hazemann J L et al. Phys. Rev. B, 1999, 57: 2585. Itie J P, Baudelet F et al. J. Phys.: Condens. Matter, 2005,17: S8836. MAO Ho-Kwang, SHU Jin-Fu, SHEN Guo-Yin et al. Na-ture, 2003, 396: 7417. Houser B, Ingalls R. Phys. Rev. B, 2000, 61: 6515

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ZHENG Li-Rong, CHE Rong-Zheng, LIU Jing, DU Yong-Hua, ZHOU Ying-Li and HU Tian-Dou. A new cell for X-ray absorption spectroscopy study under high pressure[J]. Chinese Physics C, 2009, 33(8): 701-705. doi: 10.1088/1674-1137/33/8/020

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Received: 2008-11-01
Revised: 2008-11-25

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沈阳化工大学材料科学与工程学院沈阳 110142

A new cell for X-ray absorption spectroscopy study under high pressure

Corresponding author: ZHENG Li-Rong,

Received Date: 2008-11-01
Accepted Date: 2008-11-25
Available Online: 2009-08-05

Abstract:

X-ray absorption fine structure (XAFS) spectroscopy is a powerful technique for the investigation of the local environment around selected atoms in condensed matter. XAFS under pressure is an important method for the synchrotron source. We design a cell for a high pressure XAFS experiment. Sintered boron carbide is used as the anvils of this high pressure cell in order to obtain a full XAFS spectrum free from diffraction peaks. In addition, a hydraulic pump was adopted to make in-suit pressure modulation. High quality XAFS spectra of ZrH₂ under high pressure (up to 13 GPa) were obtained by this cell.