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

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

表现出不相称漫散射的 B2 型 Ti–(50 − x)Ni–xFe 和 Ti–(50 − x)Pd–xFe 合金的电子结构

DOI:
10.1016/j.msea.2006.12.190
复制
发表时间:
2008
影响因子:
6.4
通讯作者:
T. Kakeshita
T. Kakeshita
中科院分区:
材料科学1区
文献类型:
--
作者:
Takuya Yamamoto;T. Fukuda;T. Kakeshita

文献摘要

参考文献

被引文献

相似文献

计算了B2型Ti-(50−x)Ni-xFe(0≤x≤ 28 at.%)的电子结构Ti-(50−x)Pd-xFe(0≤x≤22at.%)合金,以了解这些系统中出现的漫散射的起源,以及B2型结构的稳定性。对于这两个系统,每种合金的费米面都显示出在广义磁化率χ(q)中具有尖峰的嵌套,嵌套矢量为qn=[n n 0]2π/a。随着Fe含量的增加,峰位的λ_n值线性减小.此外,除了Ti-(50−x)Ni-xFe(x≤4at.%)外,χ(q)的峰值随着Fe含量的增加而减小。这些结果表明,漫散射的位置移向其最近的基本反射的B2相的Fe含量的增加和增加Fe含量的B2相的稳定性增加。这些建议与迄今为止报道的实验结果吻合得很好。
We have calculated the electronic structure of B2-type Ti–(50−x)Ni–xFe (0≤x≤28at.%) and Ti–(50−x)Pd–xFe (0≤x≤22at.%) 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 χ(q) at a nesting vector of qn=[ζnζn0]2π/a. The value of ζnof the peak position decreases linearly as the Fe content increases. In addition, the peak of χ(q) decreases as the Fe content increases except for Ti–(50−x)Ni–xFe with x≤4at.%. 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.
DOI: 10.1088/0964-1726/14/5/004
发表时间: 2005-10
影响因子: 4.1
作者:
T. Ohba;N. Miyamoto;K. Fukuda;T. Fukuda;T. Kakeshita;K. Kato
通讯作者: T. Ohba;N. Miyamoto;K. Fukuda;T. Fukuda;T. Kakeshita;K. Kato
DOI: 10.1016/j.scriptamat.2005.05.040
发表时间: 2005-10-01
期刊: SCRIPTA MATERIALIA
影响因子: 6
作者:
Choi, MS;Fukuda, T;Kakeshita, T
通讯作者: Kakeshita, T
等原子TiNi合金的中子散射研究
DOI: --
发表时间: 2003
期刊: J.Phys.IV France 112
影响因子: --
作者:
Ken-ichi Tsubota;Taiji Adachi;Takeshi Karino;T.Ohba
通讯作者: T.Ohba