ELECTRONIC-STRUCTURE OF 4D IMPURITIES IN RB - A LOCAL-SPIN-DENSITY APPROXIMATION +U DENSITY-FUNCTIONAL STUDY

被引：2

作者：

STEFANOU, N

机构：

[1] Solid State Section, Athens Univ.

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 1994年 / 6卷 / 50期

关键词：

D O I：

10.1088/0953-8984/6/50/028

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The electronic structure of the 4d substitutional impurities in Rb is studied by means of self-consistent density-functional calculations. Exchange and correlation corrections for localized orbitals. as included in the mean-field solution of Anderson's model, are superimposed on the spin-dependent potential of the traditional local-spin-density approximation. We find ionic-like d(n) configurations and a quite important spin polarization of the extended sp states. For Nb and Ru impurities we obtain two stable configurations in each case and their energetic stability is studied by means of constrained density-functional calculations. Our results are compared with the results of other calculations and with the available experimental data.

引用

页码：11221 / 11228

页数：8

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