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Investigation of phonons and magnons in [Ni80Fe20/Au/Co/Au]10 multilayers
Journal of Magnetism and Magnetic Materials ( IF 2.5 ) Pub Date : 2020-04-01 , DOI: 10.1016/j.jmmm.2020.166428
M. Zdunek , A. Trzaskowska , J.W. Kłos , N.K.P. Babu , S. Mielcarek

Abstract The dispersion relations of surface acoustic waves and spin waves propagating in magnetic [Ni80Fe20/Au/Co/Au]10 multilayers deposited on a silicon substrate have been investigated by high-resolution Brillouin spectroscopy. We measured the spectra of spin waves for two canonical geometries where the spin waves propagate with the wave vector oriented parallel and perpendicular to the direction of static magnetization in-plane magnetized Py layer. We investigated experimentally the crossing of phononic and magnonic dispersion relations and discussed the mechanism of magnetoelastic interaction in this system.

中文翻译:

[Ni80Fe20/Au/Co/Au]10 多层膜中声子和磁子的研究

摘要 通过高分辨率布里渊光谱研究了表面声波和自旋波在沉积在硅衬底上的磁性 [Ni80Fe20/Au/Co/Au]10 多层膜中传播的色散关系。我们测量了两种标准几何的自旋波光谱,其中自旋波以平行和垂直于平面内磁化 Py 层的静态磁化方向的波矢量传播。我们通过实验研究了声子色散和磁子色散关系的交叉,并讨论了该系统中磁弹性相互作用的机制。
更新日期:2020-04-01
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