...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Physical review, B. Condensed matter and materials physics >Temperature dependent E_2 Raman modes in the ZnCoO ternary alloy
【24h】

Temperature dependent E_2 Raman modes in the ZnCoO ternary alloy

机译：

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The anharmonic properties of low and high frequency E_2 modes of ZnO and Co doped ZnO were investigated using Raman scattering spectroscopy. We have determined the behavior of frequency, linewidths, and lifetime of E_2 modes in the temperature range from 80 to 800 K. In the case of E_2~(high) mode the frequency shift towards the lower energy side was analyzed in light of the theory of anharmonic phonon-phonon interaction and thermal expansion of the lattice, and the linewidth behavior was analyzed in terms of anharmonic effect of three-phonon decay mechanism. But in the case of E_2~(low), the linewidth and frequency behaved practically harmonic with respect to temperature and independent of Co substitutions. It is found that the E_2~(high) phonon anharmonicity is higher for ZnCoO alloys than in pure ZnO and it increases with the compositional disorder. The low temperature lifetime of E_2 phonon in ZnO, 1 and 3 Co doped ZnO were found to be 1.82, 1.74, and 1.54 ps, respectively.

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号