Ferromagnetic domain wall as a nonreciprocal string

Article

关键词: DYNAMICS;    MOTION;    VORTICES;    MOMENTUM;   

DOI  :  10.1103/PhysRevB.98.104411

来源: SCIE

【 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.

【 授权许可】

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