Long-range electronic interactions between adatoms on transition metal surfaces

被引：13
|
作者：
Stepanyuk, VS
Niebergall, L
Baranov, AN
Hergert, W
Bruno, P
机构：
[1] Max Planck Inst Mikrostrukturphys, D-06120 Halle, Germany
[2] Univ Halle Wittenberg, Fachbereich Phys, D-06099 Halle, Germany
来源：
COMPUTATIONAL MATERIALS SCIENCE | 2006年 / 35卷 / 03期
关键词：
ab initio calculations; spin-polarized surface states; long-range interactions;
D O I：
10.1016/j.commatsci.2004.09.053
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Ab initio calculations of surface-state mediated interactions between Cu adatoms on transition metal surfaces are presented. We concentrate on Co/Cu(111) and Co(0001) substrates and compare results with our calculations for Cu(111). Our studies show that surface states of Co/Cu(111) and Co(0001) are spin-polarized. We reveal that long-range interactions between adatoms are mainly determined by sp-majority states. In contrast to Cu(111) and Co/Cu(111), the interaction between adatoms on Co(0001) is strongly suppressed at large adsorbate separations. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码：272 / 274
页数：3
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