arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 1801.07166cond-mat.mes-hall
收藏

非互易弦的铁磁畴壁

Ferromagnetic domain wall as a nonreciprocal string

Shu Zhang, Oleg Tchernyshyov

摘要:

我们提出了一个简单的模型的磁畴壁的薄膜铁磁体。畴壁被表示为非互易弦,在其上横波以不同的速度沿相反的方向传播。该模型有三个参数:质量密度,张力,和一个陀螺常数量化的非互易性。我们讨论有限几何中非互易弦的不寻常动力学。这与数值模拟的等宽条带中磁畴壁的运动规律吻合得很好。

英文摘要:

We present a simple model of a domain wall in a thin-film ferromagnet. A domain wall is represented as a nonreciprocal string, on which transverse waves propagate with different speeds in opposite directions. The model has three parameters: mass density, tension, and a gyroscopic constant quantifying the nonreciprocity. We discuss the unusual dynamics of a nonreciprocal string in finite geometry. It agrees well with numerically simulated motion of a ferromagnetic domain wall in a strip of constant width.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑