Direct observation of the single-domain limit of Fe nanomagnets by spin-polarized scanning tunneling spectroscopy

被引：55
|
作者：
Yamasaki, A [1 ]
Wulfhekel, W
Hertel, R
Suga, S
Kirschner, J
机构：
[1] Osaka Univ, Grad Sch Engn Sci, Osaka 5608531, Japan
[2] Max Planck Inst Mikrostrukturphys, D-06120 Halle Saale, Germany
来源：
PHYSICAL REVIEW LETTERS | 2003年 / 91卷 / 12期
关键词：
D O I：
10.1103/PhysRevLett.91.127201
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We have investigated the magnetic structure of self-organized Fe islands on W(001) by means of spin-polarized scanning tunneling spectroscopy (Sp-STS). Single-domain, simple vortex, and distorted vortex states have been observed. The high resolution magnetic images were used to experimentally determine the single-domain limit. The experimental structures were compared with results of micromagnetic calculations confirming the ground state nature of the experimental configurations. The single-domain limit directly observed with Sp-STS is consistent with theoretical predictions.
引用
收藏
页码：127201 / 127201
页数：4
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