Step-induced unusual magnetic properties of ultrathin Co/Cu films: Ab initio study

被引：22

作者：

Smirnov, AV

Bratkovsky, AM

机构：

[1] TH DARMSTADT,INST FESTKORPERPHYS,D-64289 DARMSTADT,GERMANY

[2] HEWLETT PACKARD CORP,PALO ALTO,CA 94304

来源：

PHYSICAL REVIEW B | 1996年 / 54卷 / 24期

关键词：

D O I：

10.1103/PhysRevB.54.R17371

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We have performed ab initio studies to elucidate the unusual magnetic behavior recently observed in epitaxial Co films upon absorption of submonolayers of Cu and other materials. We find that a submonolayer amount of Cu on a stepped Co/Cu (100) film changes dramatically the electronic and magnetic structure of the system. The effect is mainly due to hybridization of Co and Cu d electrons when copper forms a ''wire'' next to a Co step at: the surface. As a result, a noncollinear arrangement of magnetic moments (switching of the easy axis) is promoted.

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页码：17371 / 17374

页数：4

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