Lattice Dynamics Study Of Elemental Bismuth Under High Pressure
JOURNAL OF PHYSICAL CHEMISTRY C(2020)
摘要
We report a combined experimental and theoretical study of the lattice dynamics of different high-pressure phases of bismuth and their pressure dependence. The stability and the lattice dynamics of the different phases were calculated at room and high pressures. Raman-scattering experiments were performed up to 9 GPa, and the Raman spectrum of the Bi-III phase with a guest-host structure was measured for the first time. The assignment of the Raman modes of the Bi-II phase and the pressure dependence of the Bi-I, Bi-II, and Bi-III phases were obtained using density-functional theory (DFT) calculations. From the DFT calculations, we have determined the vibrational modes due to the motion of the guest atoms along the c direction.
更多查看译文
AI 理解论文
溯源树
样例
![](https://originalfileserver.aminer.cn/sys/aminer/pubs/mrt_preview.jpeg)
生成溯源树,研究论文发展脉络
Chat Paper
正在生成论文摘要