Description of the phase transitions of cuprous iodide

作者：Shan Yu^*; Li Guangwu; Tian Guang; Han Jingzhi; Wang Changsheng; Liu Shunquan; Du Honglin; Yang Yingchang

来源：Journal of Alloys and Compounds, 2009, 477(1-2): 403-406.

DOI：10.1016/j.jallcom.2008.10.026

• X-ray diffraction
• Phase transition
• Crystal structure
• Cuprous iodide

The phase structures and the phase transition temperatures among alpha, beta and gamma phases of CuI have been studied by using X-ray diffractometer with high-temperature camera. The phase transition temperatures are found to be obviously lower than the previous results. And the X-ray diffraction results have allowed the refined structure for beta-CuI to be determined in space group R-3m, with Cu( ) in 6(c) sites and I(-) in 3(a) and 3(b) sites, which is different from other reports and has been approved to be a transient phase in other articles. The results are also discussed and attributed to the pressure effect.

• 出版日期2009-5-27
• 单位北京大学; 中国原子能科学研究院