Stabilizing Vortices in Interacting Nano-Objects: A Chemical Approach

被引：26

作者：

Lacroix, Lise-Marie ^{[1
,2
]}

Lachaize, Sebastien ^{[1
,2
]}

Hue, Florian ^{[3
]}

Gatel, Christophe ^{[4
]}

Blon, Thomas ^{[1
,2
]}

Tan, Reasmey P. ^{[1
,2
]}

Carrey, Julian ^{[1
,2
]}

Warot-Fonrose, Benedicte ^{[4
]}

Chaudret, Bruno ^{[1
,2
]}

机构：

[1] Univ Toulouse, INSA, UPS, LPCNO, F-31077 Toulouse, France

[2] CNRS, UMR 5215, LPCNO, F-31077 Toulouse, France

[3] Univ Cambridge, Dept Mat Sci & Met, Cambridge CB2 3QZ, England

[4] CEMES CNRS, F-31055 Toulouse, France

来源：

NANO LETTERS | 2012年 / 12卷 / 06期

关键词：

Magnetic nanoparticles; bcc-Fe; porous nano-objects; vortex stabilization; electron holography; electron tomography; MAGNETIC NANOPARTICLES; ELECTRON HOLOGRAPHY; SUPERLATTICES;

D O I：

10.1021/nl3012616

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We report a chemical method to prepare metallic Fe porous nanocubes. The presence of pores embedded inside the cubes was attested by electron tomography. Thanks to electronic holography and micromagnetic simulations, we show that the presence of these defects stabilizes the vortices in assembly of interacting cubes. These results open new perspectives toward magnetic vortex stabilization at relatively low cost for various applications (microelectronics, magnetic recording, or biological applications).

引用

页码：3245 / 3250

页数：6

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