• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Philosophical magazine, B. Physics of condensed matter, electronic, optical, and magnetic properties >Vibrational order in Pu0.98Ga0.02
【24h】

Vibrational order in Pu0.98Ga0.02

机译：Pu0.98Ga0.02中的振动阶

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

In an earlier paper (Lawson et al., 2000, Phil. Mag. B, 80, 53) we described the measurement and interpretation of Debye-Waller factors in a delta -phase Pu0.98Ga0.02 alloy. We concluded that the measurements could be described using a Debye model with a strongly temperature-dependent Debye-Waller temperature. In those experiments, we observed significant diffuse scattering in the neutron powder diffraction patterns. In this paper we describe a new technique for analysing diffuse scattering based on Rietveld analysis, and apply the technique to data for F-phase Pu0.98Ga0.02 and for Pb. The results from the correlations among lattice vibrations show that the diffuse scattering is Warren-Borie scattering and that the diffuse scattering is in basic agreement with that expected from the Debye model except that the scattering from the nearest-neighbour correlations in Pu0.98Ga0.02 is anomalous at high temperatures. We also discuss the observation of significant anisotropic broadening of the diffraction peaks for Pu0.98Ga0.02 at low temperatures. [References: 29]
机译：在较早的论文中（Lawson等，2000，Phil。Mag。B，80，53），我们描述了δ-相Pu0.98Ga0.02合金中Debye-Waller因子的测量和解释。我们得出的结论是，可以使用Debye模型来描述测量结果，该模型具有强烈的温度依赖性Debye-Waller温度。在那些实验中，我们在中子粉末衍射图中观察到明显的散射。在本文中，我们描述了一种基于Rietveld分析的弥散散射分析新技术，并将该技术应用于F相Pu0.98Ga0.02和Pb的数据。晶格振动相关性的结果表明，扩散散射是Warren-Borie散射，并且该散射与Debye模型的预期散射基本一致，除了Pu0.98Ga0.02中来自最近邻相关性的散射在高温下是异常的。我们还讨论了在低温下Pu0.98Ga0.02衍射峰明显各向异性加宽的现象。 [参考：29]

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