...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Materials Science and Engineering >Electronic structure of B2-type Ti-(50 - x)Ni-xFe and Ti-(50 - x)Pd-xFe alloys exhibiting incommensurate diffuse scattering
【24h】

Electronic structure of B2-type Ti-(50 - x)Ni-xFe and Ti-(50 - x)Pd-xFe alloys exhibiting incommensurate diffuse scattering

机译：B2型Ti-（50-x）Ni-xFe和Ti-（50-x）Pd-xFe合金的电子结构表现出不均匀的散射

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

We have calculated the electronic structure of B2-type Ti-(50 - x)Ni-xFe (0 ≤ x ≤ 28 at.%) and Ti-(50 - x)Pd-xFe (0 ≤ x ≤ 22 at.%) alloys in order to understand the origin of diffuse scattering appearing in these systems, and the stability of the B2-type structure. For both systems, the Fermi surface of each alloy shows nesting with a sharp peak in the generalized susceptibility x(q) at a nesting vector of q_n = [ζ_nζ_n 0]2π/a. The value of ζ_n of the peak position decreases linearly as the Fe content increases. In addition, the peak of x(q) decreases as the Fe content increases except for Ti-(50 - x)Ni-xFe with x ≤ 4 at.%. These results suggest that the position of diffuse scattering shifts towards its nearest fundamental reflection of the B2-phase as the Fe content increases and that the stability of the B2-phase increases with increasing Fe content. These suggestions are in good agreement with experimental results reported until now.
机译：我们已经计算出B2型Ti-（50-x）Ni-xFe（0≤x≤28 at。％）和Ti-（50-x）Pd-xFe（0≤x≤22 at。％）的电子结构）合金，以了解在这些系统中出现的弥散散射的起源以及B2型结构的稳定性。对于这两个系统，每种合金的费米表面在q_n = [ζ_nζ_n0]2π/ a的嵌套向量处的广义磁化率x（q）中均显示一个尖峰。峰位置的ζ_n的值随着Fe含量的增加而线性降低。另外，x（q）的峰随着Fe含量的增加而降低，除了x≤4at。％的Ti-（50-x）Ni-xFe之外。这些结果表明，随着Fe含量的增加，扩散散射的位置向B2相的最近的基本反射方向移动，并且随着Fe含量的增加，B2相的稳定性增加。这些建议与迄今为止报道的实验结果非常吻合。

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