MECHANISM OF FAST AXIALLY SYMMETRIC REVERSAL OF MAGNETIC VORTEX CORE

被引：2
|
作者：
Pylypovskyi, O. V. [1 ]
Sheka, D. D. [1 ]
Kravchuk, V. P. [2 ]
Gaididei, Y. U. B. [2 ]
Mertens, F. G. [3 ]
机构：
[1] Taras Shevchenko Natl Univ Kyiv, 60 Volodymyrska Str, UA-01601 Kiev, Ukraine
[2] Nat Acad Sci Ukraine, Bogolyubov Inst Theoret Phys, UA-03680 Kiev, Ukraine
[3] Univ Bayreuth, Phys Inst, D-95440 Bayreuth, Germany
来源：
UKRAINIAN JOURNAL OF PHYSICS | 2013年 / 58卷 / 06期
关键词：
magnetic vortex; nanodot; nanodisk; vortex random-access memories;
D O I：
10.15407/ujpe58.06.0596
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The magnetic vortex core in a nanodot can be switched by an alternating transversal magnetic field. We propose a simple collective coordinate model, which describes the comprehensive vortex core dynamics, including the resonant behavior, weakly nonlinear regimes, and reversal dynamics. A chaotic dynamics of the vortex polarity is predicted. All analytical results are confirmed by micromagnetic simulations.
引用
收藏
页码：596 / 603
页数：8
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