论文标题
磁性域壁动力学中的动力学：dzyaloshinskii-moriya相互作用的影响
Magnetic domain wall dynamics in the precessional regime: influence of the Dzyaloshinskii-Moriya interaction
论文作者
论文摘要
测量了一系列具有不同强度的界面dzyaloshinskii-moriya相互作用（DMI）的磁性三利型的磁场驱动的域壁动力学。场驱动的域壁速度曲线的特征在很大程度上取决于HD场稳定手性Néel壁的振幅。在Walker场导致Slonczewski Field HS的速度高原后，在具有较大DMI的系统中，测得的Walker速度可以与DMI强度相关。但是，当DMI场HD和域壁反应场HDW具有可比的值时，需要进行仔细的分析，以评估DMI对域壁速度的影响。通过一维模型和2D模拟，我们成功地扩展了此方法，以将实验结果解释为HD和HDW相当的情况。
The domain wall dynamics driven by an out of plane magnetic field was measured for a series of magnetic trilayers with different strengths of the interfacial Dzyaloshinskii-Moriya interaction (DMI). The features of the field-driven domain wall velocity curves strongly depend on the amplitude of the HD field stabilising chiral Néel walls. The measured Walker velocity, which in systems with large DMI is maintained after the Walker field giving rise to a velocity plateau up to the Slonczewski field HS, can be easily related to the DMI strength. Yet, when the DMI field HD and the domain wall demagnetising field HDW have comparable values, a careful analysis needs to be done in order to evaluate the impact of the DMI on the domain wall velocity. By means of a one-dimensional model and 2D simulations, we successfully extend this method to explain experimental results to cases where HD and HDW are comparable.
