%A Ce Ma(马策), Zuo-Yong Dou(窦作勇), Hong-Yang Zhu(祝洪洋), Guang-Yan Fu(付广艳), Xiao Tan(谈笑), Bin Bai(白彬), Peng-Cheng Zhang(张鹏程), Qi-Liang Cui(崔啟良) %T Structure phase transformation and equation of state of cerium metal under pressures up to 51 GPa %0 Journal Article %D 2016 %J Chin. Phys. B %R 10.1088/1674-1056/25/4/046401 %P 46401-046401 %V 25 %N 4 %U {https://cpb.iphy.ac.cn/CN/abstract/article_118506.shtml} %8 2016-04-05 %X This study presents high pressure phase transitions and equation of states of cerium under pressures up to 51 GPa at room temperature. The angle-dispersive x-ray diffraction experiments are carried out using a high energy synchrotron x-ray source. The bulk moduli of high pressure phases of cerium are calculated using the Birch-Murnaghan equation. We discuss and correct several previous controversial conclusions, which are caused by the measurement accuracy or personal explanation. The c/a axial ratio of ε-Ce has a maximum value at about 29 GPa, i.e., c/a ≈ 1.690.