2009
Structural study of FeP2 at high pressure
HIGH PRESSURE RESEARCH
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- Volume
- 29
- Number
- 2
- First page
- 235
- Last page
- 244
- Language
- English
- Publishing type
- Research paper (scientific journal)
- DOI
- 10.1080/08957950802597221
- Publisher
- TAYLOR & FRANCIS LTD
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 FeP2 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.
- Link information
- ID information
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- DOI : 10.1080/08957950802597221
- ISSN : 0895-7959
- Web of Science ID : WOS:000266245900009