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
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发表时间:
2008
期刊:
影响因子:
6.4
通讯作者:
T. Kakeshita
中科院分区:
文献类型:
--
作者:
Takuya Yamamoto;T. Fukuda;T. Kakeshita
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.
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
影响因子:
6
作者:
Choi, MS;Fukuda, T;Kakeshita, T
通讯作者:
Kakeshita, T
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