...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Physical review >Boson peak in alkaline borate glasses: Raman spectroscopy, neutron scattering, and specific-heat measurements
【24h】

Boson peak in alkaline borate glasses: Raman spectroscopy, neutron scattering, and specific-heat measurements

机译：碱性硼酸盐玻璃中的玻色子峰：拉曼光谱，中子散射和比热测量

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 dependence of the boson peak on the alkaline ion in modified borate glasses (M_2O)_(0.14)(B_2O_3)_(0.86) (M+~=Li~+,Na~+,K~+,Cs~+) was analyzed by performing Raman spectroscopy, inelastic neutron scattering, and low-temperature specific-heat measurements. It is found that the distribution of vibrations merging into the boson peak shifts to higher frequency by going from cesium to lithium. A linear correlation between the boson peak frequency and the transverse sound velocity is evidenced. The dependence on the polarizing power of the metallic cation is analyzed, stemming from considerations about elastic moduli. These findings suggest a mainly transverse character of the excess vibrational modes in glasses.
机译：分析了改性硼酸盐玻璃（M_2O）_（0.14）（B_2O_3）_（0.86）（M +〜= Li〜+，Na〜+，K〜+，Cs〜+）中玻色子峰对碱性离子的依赖性。通过执行拉曼光谱，非弹性中子散射和低温比热测量。已经发现，合并到玻色子峰中的振动的分布通过从铯变成锂而移向更高的频率。玻色子峰值频率与横向声速之间存在线性关系。基于关于弹性模量的考虑，分析了对金属阳离子极化能力的依赖性。这些发现表明玻璃中过量振动模式的主要横向特征。

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