Compressibility of strontium orthophosphate Sr3(PO4)2 at high pressure

Shuangmeng Zhai; Weihong Xue; Daisuke Yamazaki; Shuangming Shan; Eiji Ito; Naotaka Tomioka; Akira Shimojuku; Ken ichi Funakoshi

doi:10.1007/s00269-010-0409-9

Compressibility of strontium orthophosphate Sr₃(PO₄)₂ at high pressure

Shuangmeng Zhai, Weihong Xue, Daisuke Yamazaki, Shuangming Shan, Eiji Ito, Naotaka Tomioka, Akira Shimojuku, Ken ichi Funakoshi

Institute for Planetary Materials

Research output: Contribution to journal › Article › peer-review

20 Citations (Scopus)

Abstract

High pressure in situ synchrotron X-ray diffraction experiment of strontium orthophosphate Sr₃(PO₄)₂ has been carried out to 20.0 GPa at room temperature using multianvil apparatus. Fitting a third-order Birch-Murnaghan equation of state to the P-V data yields a volume of V₀ = 498.0 ± 0.1 Å³, an isothermal bulk modulus of K_T = 89.5 ± 1.7 GPa, and first pressure derivative of K_T′ = 6.57 ± 0.34. If K_T′ is fixed at 4, K_T is obtained as 104.4 ± 1.2 GPa. Analysis of axial compressible modulus shows that the a-axis (K_a = 79.6 ± 3.2 GPa) is more compressible than the c-axis (K_c = 116.4 ± 4.3 GPa). Based on the high pressure Raman spectroscopic results, the mode Grüneisen parameters are determined and the average mode Grüneisen parameter of PO₄ vibrations of Sr₃(PO₄)₂ is calculated to be 0.30(2).

Original language	English
Pages (from-to)	357-361
Number of pages	5
Journal	Physics and Chemistry of Minerals
Volume	38
Issue number	5
DOIs	https://doi.org/10.1007/s00269-010-0409-9
Publication status	Published - May 2011

Keywords

Equation of state
High pressure
Sr(PO)
Synchrotron X-ray diffraction

ASJC Scopus subject areas

Materials Science(all)
Geochemistry and Petrology

Access to Document

10.1007/s00269-010-0409-9

Cite this

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title = "Compressibility of strontium orthophosphate Sr3(PO4)2 at high pressure",

abstract = "High pressure in situ synchrotron X-ray diffraction experiment of strontium orthophosphate Sr3(PO4)2 has been carried out to 20.0 GPa at room temperature using multianvil apparatus. Fitting a third-order Birch-Murnaghan equation of state to the P-V data yields a volume of V0 = 498.0 ± 0.1 {\AA}3, an isothermal bulk modulus of KT = 89.5 ± 1.7 GPa, and first pressure derivative of KT′ = 6.57 ± 0.34. If KT′ is fixed at 4, KT is obtained as 104.4 ± 1.2 GPa. Analysis of axial compressible modulus shows that the a-axis (Ka = 79.6 ± 3.2 GPa) is more compressible than the c-axis (Kc = 116.4 ± 4.3 GPa). Based on the high pressure Raman spectroscopic results, the mode Gr{\"u}neisen parameters are determined and the average mode Gr{\"u}neisen parameter of PO4 vibrations of Sr3(PO4)2 is calculated to be 0.30(2).",

keywords = "Equation of state, High pressure, Sr(PO), Synchrotron X-ray diffraction",

author = "Shuangmeng Zhai and Weihong Xue and Daisuke Yamazaki and Shuangming Shan and Eiji Ito and Naotaka Tomioka and Akira Shimojuku and Funakoshi, {Ken ichi}",

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T1 - Compressibility of strontium orthophosphate Sr3(PO4)2 at high pressure

AU - Zhai, Shuangmeng

AU - Xue, Weihong

AU - Yamazaki, Daisuke

AU - Shan, Shuangming

AU - Ito, Eiji

AU - Tomioka, Naotaka

AU - Shimojuku, Akira

AU - Funakoshi, Ken ichi

PY - 2011/5

Y1 - 2011/5

N2 - High pressure in situ synchrotron X-ray diffraction experiment of strontium orthophosphate Sr3(PO4)2 has been carried out to 20.0 GPa at room temperature using multianvil apparatus. Fitting a third-order Birch-Murnaghan equation of state to the P-V data yields a volume of V0 = 498.0 ± 0.1 Å3, an isothermal bulk modulus of KT = 89.5 ± 1.7 GPa, and first pressure derivative of KT′ = 6.57 ± 0.34. If KT′ is fixed at 4, KT is obtained as 104.4 ± 1.2 GPa. Analysis of axial compressible modulus shows that the a-axis (Ka = 79.6 ± 3.2 GPa) is more compressible than the c-axis (Kc = 116.4 ± 4.3 GPa). Based on the high pressure Raman spectroscopic results, the mode Grüneisen parameters are determined and the average mode Grüneisen parameter of PO4 vibrations of Sr3(PO4)2 is calculated to be 0.30(2).

AB - High pressure in situ synchrotron X-ray diffraction experiment of strontium orthophosphate Sr3(PO4)2 has been carried out to 20.0 GPa at room temperature using multianvil apparatus. Fitting a third-order Birch-Murnaghan equation of state to the P-V data yields a volume of V0 = 498.0 ± 0.1 Å3, an isothermal bulk modulus of KT = 89.5 ± 1.7 GPa, and first pressure derivative of KT′ = 6.57 ± 0.34. If KT′ is fixed at 4, KT is obtained as 104.4 ± 1.2 GPa. Analysis of axial compressible modulus shows that the a-axis (Ka = 79.6 ± 3.2 GPa) is more compressible than the c-axis (Kc = 116.4 ± 4.3 GPa). Based on the high pressure Raman spectroscopic results, the mode Grüneisen parameters are determined and the average mode Grüneisen parameter of PO4 vibrations of Sr3(PO4)2 is calculated to be 0.30(2).

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