H. F. Goldstein,Dai-Sik Kim,Peter Y. Yu,L. C. Bourne,J. P. Chaminade,Leon Nganga
出处
期刊:Physical Review B [American Physical Society] 日期:1990-04-01卷期号:41 (10): 7192-7194被引量:120
标识
DOI:10.1103/physrevb.41.7192
摘要
Raman scattering in single-crystalline CuO samples has been studied. From the polarization dependence, the symmetries of the three Raman-active optical phonons have been identified. The ${\mathit{A}}_{\mathit{g}}$ Raman mode with frequency of 290 ${\mathrm{cm}}^{\mathrm{\ensuremath{-}}1}$ was found to be strongly polarized along one of the crystal axes. This suggests that there are cancellations between different components of its Raman tensor.