摘要
The first-order Raman spectroscopy of diamond exhibits splitting and redshift after the burst of high-pressure(160–200 GPa) and high-temperature(～2000 K). The observed longitudinal optical(LO) and the transverse optical(TO) splitting of Raman phonon is related to the tensile-strain induced activation of the forbidden or silent Raman modes that arise in the proximity of the Brillouin zone center.
The first-order Raman spectroscopy of diamond exhibits splitting and redshift after the burst of high-pressure(160–200 GPa) and high-temperature(～2000 K). The observed longitudinal optical(LO) and the transverse optical(TO) splitting of Raman phonon is related to the tensile-strain induced activation of the forbidden or silent Raman modes that arise in the proximity of the Brillouin zone center.
作者
蒲梅芳
张峰
刘珊
入舩徹男
雷力
Meifang Pu;Feng Zhang;Shan Liu;Tetsuo Irifune;Li Lei
基金
Project supported by the National Natural Science Foundation of China(Grant No.11774247)
