Propagation and interaction of magnetic solitons in a ferromagnetic thin film with the interfacial Dzyaloshinskii-Moriya interaction

被引：14
|
作者：
Tan, Jianing [1 ]
Deng, Zhi-Hao [1 ]
Wu, Tianle [1 ]
Tang, Bing [1 ]
机构：
[1] Jishou Univ, Coll Phys Mech & Elect Engn, Jishou 416000, Peoples R China
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2019年 / 475卷
基金：
中国国家自然科学基金;
关键词：
Ferromagnetic thin film; Dzyaloshinskii-Moriya interaction; The Hirota bilinear method; Magnetic solitons; MODULATION INSTABILITY ANALYSIS; DE-VRIES EQUATION; CONSERVATION-LAWS; OPTICAL SOLITONS; MULTIPLE COLLISIONS; ROGUE WAVES; MODEL;
D O I：
10.1016/j.jmmm.2018.11.048
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We study the propagation and interaction of magnetic solitons in a ferromagnetic thin film with the interfacial Dzyaloshinskii-Moriya interaction. The governing Landau-Lifshitz-Gilbert equation can be transformed into an integrable nonlinear Shrodinger-type equation in the long wave limit. With the use of the Hirota bilinear method, the analytical expressions of one-, two-, and three-soliton solutions are constructed. We find that the Dzyaloshinskii-Moriya interaction can change the velocities of magnetic solitons and affect the colliding position of the two solitons. In particular, a reverse effect of the propagation direction of the magnetic soliton is observed. Our results have potential applications in storage and communication technologies.
引用
收藏
页码：445 / 452
页数：8
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