Effect of Cr on the electronic structure of Co3Al intermetallic compound: A first-principles study
Effect of Cr on the electronic structure of Co3Al intermetallic compound: A first-principles study
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Cr对Co3Al金属间化合物电子结构的影响:第一性原理研究
DOI:
10.1016/j.jmmm.2007.11.006
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发表时间:
2008-04
影响因子:
2.7
通讯作者:
中科院分区:
文献类型:
--
作者:
The effect of doping with Cr on the electronic structure and magnetism of Co3Al has been studied by density functional calculations. It has been found that the Cr atom has a strong site preference for the B-site in Co3Al. With the substitution of Cr for Co, the total densities of states (DOS) change obviously: A DOS peak appears at EFin the majority spin states and an energy gap is opened in the minority spin states. The effect of Cr in Co3Al is mainly to push the antibonding peak of the Co (A,C) atoms high on the energy scale and to form the energy gap around EF, and also to contribute to the large DOS peak at EFin the majority spin direction. The calculations indicate a ferromagnetic alignment between the Co and Cr spin moments. The calculated total magnetic moment decreases and becomes closer to the Slater–Pauling curve with increasing Cr content. This is mainly due to the decrease of the Co (A,C) spin moments. At the same time, the moments of Co (B) and Cr (B) only change slightly.
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影响因子:
4
作者:
R. Umetsu;K. Kobayashi;R. Kainuma;A. Fujita;K. Fukamichi;K. Ishida;A. Sakuma
通讯作者:
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DOI:
10.1051/jphys:0198800490100176100
发表时间:
1988-10
期刊:
Journal De Physique
影响因子:
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通讯作者:
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DOI:
10.1088/0953-8984/17/46/008
发表时间:
2005-10
期刊:
Journal of Physics: Condensed Matter
影响因子:
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作者:
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DOI:
10.1007/s12045-017-0529-3
发表时间:
2017-08
期刊:
Resonance
影响因子:
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作者:
R. Nityananda;P. Hohenberg;Walter Kohn
通讯作者:
R. Nityananda;P. Hohenberg;Walter Kohn