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arXiv 1901.05985cond-mat.mes-hall
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Co/Pd条畴系统磁能带结构的布里渊光散射和微磁学模拟

Magnonic band structure in a Co/Pd stripe domain system investigated by Brillouin light scattering and micromagnetic simulations

Chandrima Banerjee, Pawel Gruszecki, Jaroslaw W. Klos, Olav Hellwig, Maciej Krawczyk, Anjan Barman

摘要:

采用布里渊光散射和微磁学模拟相结合的方法,研究了Co/Pd薄膜多层膜的自旋波动力学特性。周期性的上下畴由螺旋状畴壁分隔。这些域的存在导致否则体和表面自旋波模式的散射,其形成模式族,类似于一维磁振子晶体。测量了传输波矢平行于和垂直于畴轴时自旋波的色散关系和模式分布。

英文摘要:

By combining Brillouin Light Scattering and micromagnetic simulations we studied the spin-wave dynamics of a Co/Pd thin film multilayer, features a stripe domain structure at remanence. The periodic up and down domains are separated by cork-screw type domain walls. The existence of these domains causes a scattering of the otherwise bulk and surface spin-wave modes, which form mode families, similar to a one dimensional magnonic crystal. The dispersion relation and mode profiles of spin waves are measured for transferred wave vector parallel and perpendicular to the domain axis.

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。

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