标题： 横向受限铁磁薄膜介质中准孤立子的形成 显示英文标题

标题： Formation of quasi-solitons in transverse confined ferromagnetic film media

摘要： 纵向磁化的铁磁薄膜条带中准二维自旋波波形的形成通过时间-空间分辨的布里渊散射技术被观察到。 在线性区域发现，限制作用降低了条带侧边附近动态磁化强度的振幅。 因此，在边缘发生了所谓的动态磁化有效偶极钉扎。 在非线性区域观察到了一种新的稳定自旋波包沿着波导结构传播，对于该结构，横向不稳定性以及与波导侧壁的相互作用都很重要。 实验和脉冲演化的数值模拟表明，形成的波形形状及其行为强烈受到限制的影响。 显示英文摘要

摘要： The formation of quasi-2D spin-wave waveforms in longitudinally magnetized stripes of ferrimagnetic film was observed by using time- and space-resolved Brillouin light scattering technique. In the linear regime it was found that the confinement decreases the amplitude of dynamic magnetization near the lateral stripe edges. Thus, the so-called effective dipolar pinning of dynamic magnetization takes place at the edges. In the nonlinear regime a new stable spin wave packet propagating along a waveguide structure, for which both transversal instability and interaction with the side walls of the waveguide are important was observed. The experiments and a numerical simulation of the pulse evolution show that the shape of the formed waveforms and their behavior are strongly influenced by the confinement.