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

• 来源期刊: 中国物理快报（英文版）
• 年，卷（期）: 2012,（2）
• 页码范围: 152-154
• 页数: 3页
• 语种: 英文
• DOI: 10.1088/0256-307X/29/2/026102

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.