Imaging spin-reorientation transitions in consecutive atomic Co layers on Ru(0001)

被引：61

作者：

El Gabaly, F ^{[1
]}

Gallego, S

Muñoz, C

Szunyogh, L

Weinberger, P

Klein, C

Schmid, AK

McCarty, KF

de la Figuera, J

机构：

[1] Univ Autonoma Madrid, Dept Fis Mat Condensada, E-28049 Madrid, Spain

[2] Univ Autonoma Madrid, Ctr Microanal Mat, E-28049 Madrid, Spain

[3] CSIC, Inst Ciencia Mat, E-28049 Madrid, Spain

[4] Budpest Univ Technol & Econ, Dept Theoret Phys, H-1521 Budapest, Hungary

[5] Budpest Univ Technol & Econ, Ctr Appl Math & Computat Phys, H-1521 Budapest, Hungary

[6] Vienna Univ Technol, Ctr Computat Mat Sci, A-1060 Vienna, Austria

[7] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA

[8] Sandia Natl Labs, Livermore, CA 94550 USA

来源：

PHYSICAL REVIEW LETTERS | 2006年 / 96卷 / 14期

关键词：

D O I：

10.1103/PhysRevLett.96.147202

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

By means of spin-polarized low-energy electron microscopy, we show that the magnetic easy axis of one to three atomic-layer thick cobalt films on Ru(0001) changes its orientation twice during deposition: One-monolayer and three-monolayer thick films are magnetized in plane, while two-monolayer films are magnetized out of plane. The Curie temperatures of films thicker than one monolayer are well above room temperature. Fully relativistic calculations based on the screened Korringa-Kohn-Rostoker method demonstrate that only for two-monolayer cobalt films does the interplay between strain, surface, and interface effects lead to perpendicular magnetization.

引用

页码：1 / 4

页数：4

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