Three dimensional magnetic nanowires grown by focused electron-beam induced deposition

被引：139

作者：

Fernandez-Pacheco, Amalio ^{[1
]}

Serrano-Ramon, Luis ^{[2
]}

Michalik, Jan M. ^{[2
]}

Ricardo Ibarra, M. ^{[2
,3
]}

De Teresa, Jose M. ^{[2
,3
]}

O'Brien, Liam ^{[1
]}

Petit, Dorothee ^{[1
]}

Lee, Jihyun ^{[1
]}

Cowburn, Russell P. ^{[1
]}

机构：

[1] Univ Cambridge, Cavendish Lab, Thin Film Magnetism Grp, Cambridge CB3 0HE, England

[2] Univ Zaragoza, CSIC, Dept Fis Mat Condensada, Inst Ciencia Mat Aragon, E-50009 Zaragoza, Spain

[3] Univ Zaragoza, Lab Microscopias Avanzadas, Inst Nanociencia Aragon, Zaragoza 50018, Spain

来源：

SCIENTIFIC REPORTS | 2013年 / 3卷

关键词：

NANOLITHOGRAPHY;

D O I：

10.1038/srep01492

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

070301 [无机化学]; 070403 [天体物理学]; 070507 [自然资源与国土空间规划学]; 090105 [作物生产系统与生态工程];

摘要：

Control of the motion of domain walls in magnetic nanowires is at the heart of various recently proposed three-dimensional (3D) memory devices. However, fabricating 3D nanostructures is extremely complicated using standard lithography techniques. Here we show that highly pure 3D magnetic nanowires with aspect-ratios of similar to 100 can be grown using focused electron-beam-induced-deposition. By combining micromanipulation, Kerr magnetometry and magnetic force microscopy, we determine that the magnetisation reversal of the wires occurs via the nucleation and propagation of domain walls. In addition, we demonstrate that the magnetic switching of individual 3D nanostructures can be directly probed by magneto-optical Kerr effect.

引用

页数：5

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