Ab initio electronic structure calculations of correlated systems:: An EMTO-DMFT approach -: art. no. 235106

被引:63
作者
Chioncel, L [1 ]
Vitos, L
Abrikosov, IA
Kollár, J
Katsnelson, MI
Lichtenstein, AI
机构
[1] Univ Nijmegen, NL-6525 ED Nijmegen, Netherlands
[2] Res Inst Solid State Phys & Opt, H-1525 Budapest, Hungary
[3] Royal Inst Technol, Dept Mat Sci & Engn, SE-10044 Stockholm, Sweden
[4] Uppsala Univ, S-75121 Uppsala, Sweden
[5] Sverdlovsk Met Phys Inst, Ekaterinburg 620219, Russia
来源
PHYSICAL REVIEW B | 2003年 / 67卷 / 23期
关键词
D O I
10.1103/PhysRevB.67.235106
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We propose a self-consistent method for electronic structure calculations of correlated systems, which combines the local spin-density approximation (LSDA) and the dynamical mean field theory (DMFT). The LSDA part is based on the exact muffin-tin orbital approach, meanwhile the DMFT uses a perturbation scheme that includes the T matrix with fluctuation exchange approximation. The current LSDA+DMFT implementation fulfills both self-energy and charge self-consistency requirements. We present results on the electronic structure calculations for bulk 3d transition metals (Cr, Fe, and Ni) and for Fe/Cr magnetic multilayers. The latter demonstrates the importance of the correlation effects for the properties of magnetic heterostructures.
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页数:9
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