Direct Observation of Current-Induced Motion of a 3D Vortex Domain Wall in Cylindrical Nanowires

被引：19
作者：
Ivanov, Yurii P. [1 ,2 ,3 ]
Chuvilin, Andrey [4 ,5 ]
Lopatin, Sergei [1 ]
Mohammed, Hanan [1 ]
Kosel, Jurgen [1 ]
机构：
[1] King Abdullah Univ Sci & Technol, Thuwal 239556900, Saudi Arabia
[2] Austrian Acad Sci, Erich Schmid Inst Mat Sci, Jahnstr 12, A-8700 Leoben, Austria
[3] Far Eastern Fed Univ, Sch Nat Sci, Vladivostok 690950, Russia
[4] CIC NanoGUNE Consolider, Ave Tolosa 76, San Sebastian 20018, Spain
[5] Basque Fdn Sci, Ikerbasque, Maria Diaz de Haro 3, Bilbao 48013, Spain
来源：
ACS APPLIED MATERIALS & INTERFACES | 2017年 / 9卷 / 20期
关键词：
current-driven domain wall motion; nanowires; assembled nanostructures; in situ electron microscopy; 3D memory; MAGNETIC NANOWIRES; DRIVEN; MEMORY; TORQUE;
D O I：
10.1021/acsami.7b03404
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The current-induced dynamics of 3D magnetic vortex domain walls in cylindrical Co/Ni nanowires are revealed experimentally using Lorentz microscopy and theoretically using micromagnetic simulations. We demonstrate that a spin-polarized electric current can control the reversible motion of 3D vortex domain walls, which travel with a velocity of a few hundred meters per second. This finding is a key step in establishing fast, high-density memory devices based on vertical arrays of cylindrical magnetic nanowires.
引用
收藏
页码：16742 / 16745
页数：4
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