Observation of infrared active and silent modes in cubic crystals by hyper‐Raman scattering
Observation of infrared active and silent modes in cubic crystals by hyper‐Raman scattering
复制标题
通过超拉曼散射观察立方晶体中的红外主动模式和静音模式
DOI：
10.1002/pssb.2220920107
复制
发表时间：
1979
影响因子：
1.6
通讯作者：
G. Neumann
中科院分区：
文献类型：
--
作者：
H. Vogt;G. Neumann
CsI、CsBr、RbI 和 SrTiO3 的超拉曼光谱在室温下测量。布里渊区 I′ 点处的所有光学声子都可以被检测到，包括纵模和一种静模。将 SrTiO3 获得的结果与其他实验技术的数据进行比较。证明了超拉曼光谱在确定频率和线宽方面的优越性。
Hyper-Raman spectra of CsI, CsBr, RbI, and SrTiO3 are measured at room temperature. All optical phonons at the I′-point of the Brillouin zone can be detected including the longitudinal modes and one silent mode. The results obtained for SrTiO3 are compared with data due to other experimental techniques. Superiority of hyper-Raman speetroscopy in determining frequencies and linewidths is demonstrated.