Spin-Polarized Scanning Tunneling Spectroscopy of Self-Organized Nanoscale Co Islands on Au(111) Surfaces

被引：8

作者：

Schouteden, K. ^{[1
]}

Muzychenko, D. A. ^{[2
]}

Van Haesendonck, C. ^{[1
]}

机构：

[1] Katholieke Univ Leuven, Lab Solid State Phys & Magnetism, BE-3001 Louvain, Belgium

[2] Moscow MV Lomonosov State Univ, Fac Phys, Moscow 119992, Russia

来源：

JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | 2008年 / 8卷 / 07期

关键词：

Cobalt; Gold; Nanostructures; Spin-Polarized Scanning Tunneling Microscopy; Spin-Polarized Scanning Tunneling Spectroscopies;

D O I：

10.1166/jnn.2008.412

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Magnetic monolayer and bilayer Co islands of only a few nanometer in size were grown by atomic deposition on atomically flat Au(111) films. The islands were studied in situ by scanning tunneling microscopy (STM) and spectroscopy at low temperatures. Spin-resolved tunneling spectroscopy, using an STM tip with a magnetic coating, revealed that the Co islands exhibit a net magnetization perpendicular to the substrate surface due to the presence of spin-polarized of-states. A random distribution of islands with either upward or downward pointing magnetization was observed, without any specific correlation of magnetization orientation with island size or island height.

引用

页码：3616 / 3620

页数：5

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