4.5 Article

Nonlinear localized excitations in a topological ferromagnetic honeycomb lattice

期刊

出版社

ELSEVIER
DOI: 10.1016/j.jmmm.2021.168089

关键词

Honeycomb ferromagnet; Topological band structure; Discrete breathers; Solitons

资金

  1. National Natural Science Foundation of China [12064011, 11875126, 11964011]
  2. Natural Science Fund Project of Hunan Province [2020JJ4498, 2020JJ5453]
  3. Graduate Research Innovation Foundation of Jishou University [JGY202029]

向作者/读者索取更多资源

This theoretical study investigates nonlinear localized excitations in a Heisenberg honeycomb ferromagnet with a second neighbour Dzialozinskii-Moriya interaction, exhibiting topological band structure. Various types of nonlinear localized excitations, including two-dimensional discrete breathers and bulk gap solitons, are found using the semidiscrete multiple-scale method.
We theoretically investigate nonlinear localized excitations in a Heisenberg honeycomb ferromagnet with a second neighbour Dzialozinskii-Moriya interaction, which has been proved to possess the topological band structure. Using the time-dependent variational principle, we obtain the equation of motion for the system in the Glauber coherent-state representation. By means of the semidiscrete multiple-scale method, different types of nonlinear localized excitations are gotten. Our results show that both two-dimensional discrete breathers and bulk gap solitons may occur in the Heisenberg honeycomb ferromagnet.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.5
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据