摘要
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.
作者
顾婷婷
巫翔
秦善
刘景
李延春
张玉峰
GU Ting-Ting;WU Xiang;QIN Shan;LIU Jing;LI Yan-Chun;ZHANG Yu-Feng(Key Laboratory of Orogenic Belts and Crustal Evolution(MOE),and School of Earth and Space Sciences,Peking University,Beijing 100871;Beijing Synchrotron Radiation Facility,Institute of High Energy Physics,Chinese Academy of Sciences,Beijing 100049)
基金
Supported by the National Natural Science Foundation of China under Grant Nos 40972029 and 11079009.