Screened full-potential KKR calculations for iron compounds, based on the generalized-gradient approximation

被引:3
作者
Hoshino, T.
Asato, M.
Nakamura, T.
Zeller, R.
Dederichs, P. H.
机构
[1] Shizuoka Univ, Fac Engn, Dept Appl Phys, Hamamatsu, Shizuoka 4328561, Japan
[2] Tokyo Metropolitan Coll Technol, Dept Gen Educ, Shinagawa Ku, Tokyo 1400011, Japan
[3] Forschungszentrum Julich, Inst Festkorperforsch, D-52425 Julich, Germany
关键词
density-functional theory; PW91-GGA; screened full-potential KKR Green's function method; Fe4N;
D O I
10.1016/j.jmmm.2004.02.009
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The magnetic properties of Fe4N are studied by the screened full-potential Korringa-Kohn-Rostoker (SFPKKR) band-structure calculation method combined with the generalized-gradient approximation of density-functional theory. The present calculations reproduce very well the experimental equilibrium lattice parameter (a) and magnetic moments (MMs); the Fe-N bonding drastically changes its character from a strong bonding one (of small MMs) to a weak bonding one (of large MMs) around the lattice parameter (similar to 6.96 a.u.) being a little bit shorter than a: (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码:E231 / E232
页数:2
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