,High-Pressure and High-Temperature in situ X-Ray Diffraction Study of FeP2 up to 70GPa

• 作 者: GU Ting-Ting WU Xiang QIN Shan LIU Jing LI Yan-Chun ZHANG Yu-Feng
• 机 构: Key Laboratory of Orogenic Belts and Crustal Evolution(MOE), and School of Earth and Space Sciences,
• 出 处: 中国物理快报（英文版）
• 发表日期: 2012年2期

The high-pressure and high-temperature structural behavior of FeP2 is investigated by means of synchrotron x-ray powder diffraction combined with a laser heating technique up to 70GPa and at least 1800K.No phase transition of FeP2 occurs up to 68GPa at room temperature.While a new phase of FeP2 assigned to the CuAl2-type structure (14/mcm,Z =4) is observed at 70GPa after laser-heating.This new phase presents a quenchable property on decompression to ambient conditions.Our results update previous experimental data and are consistent with theoretical studies.