Structural study of FeP2 at high pressure

X. Wu, Masami Kanzaki, S. Qin, G. Steinle-Neumann, L. Dubrovinsky

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

The structural stability of marcasite-type FeP2 at high pressure has been studied by X-ray diffraction, Raman spectroscopy, and theoretical calculations. Experimental results show that no phase transitions happen up to 28GPa at room temperature. The shortest axis of the marcasite-type FeP 2 cell, the c-axis, is the most compressible, due to the softening of edge-shared octahedra along the c-axis. The linear pressure coefficients and Gruneisen parameters of four Raman modes are determined. Theoretical calculations further support the experimental results and indicate that FeP2 is still a semiconductor up to 35GPa.

Original languageEnglish
Pages (from-to)235-244
Number of pages10
JournalHigh Pressure Research
Volume29
Issue number2
DOIs
Publication statusPublished - Jun 2009

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structural stability
softening
Raman spectroscopy
room temperature
coefficients
cells
diffraction
x rays

Keywords

  • High pressure
  • Marcasite-type structure
  • Theoretical calculations

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Wu, X., Kanzaki, M., Qin, S., Steinle-Neumann, G., & Dubrovinsky, L. (2009). Structural study of FeP2 at high pressure. High Pressure Research, 29(2), 235-244. https://doi.org/10.1080/08957950802597221

Structural study of FeP2 at high pressure. / Wu, X.; Kanzaki, Masami; Qin, S.; Steinle-Neumann, G.; Dubrovinsky, L.

In: High Pressure Research, Vol. 29, No. 2, 06.2009, p. 235-244.

Research output: Contribution to journalArticle

Wu, X, Kanzaki, M, Qin, S, Steinle-Neumann, G & Dubrovinsky, L 2009, 'Structural study of FeP2 at high pressure', High Pressure Research, vol. 29, no. 2, pp. 235-244. https://doi.org/10.1080/08957950802597221
Wu, X. ; Kanzaki, Masami ; Qin, S. ; Steinle-Neumann, G. ; Dubrovinsky, L. / Structural study of FeP2 at high pressure. In: High Pressure Research. 2009 ; Vol. 29, No. 2. pp. 235-244.
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