Scattering of surface and volume spin waves in a magnonic crystal
Scattering of surface and volume spin waves in a magnonic crystal
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DOI：
10.1063/1.3127227
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发表时间：
2009-04-27
影响因子：
4
通讯作者：
Kostylev, M. P.
中科院分区：
文献类型：
--
作者：
Chumak, A. V.;Serga, A. A.;Kostylev, M. P.
磁振子晶体，这是作为一个阵列的表面上的磁性薄膜的浅槽制造的操作特性进行了比较的静磁表面自旋波和后向体积静磁自旋波。抑制频带的形成作为一个功能的凹槽深度进行了研究。已经发现，体波的抑制比表面波的抑制大得多。讨论了表面自旋波的非互易性以及最低体积自旋波模向较高体积自旋波模散射对抑制效率的影响。
The operational characteristics of a magnonic crystal, which was fabricated as an array of shallow grooves on a surface of a magnetic film, were compared for magnetostatic surface spin waves and backward volume magnetostatic spin waves. The rejection frequency bands formation was studied as a function of the grooves depth. It has been found that the rejection of the volume wave is considerably larger than of the surface one. The influences of the nonreciprocity of the surface spin waves, as well as of the scattering of the lowest volume spin-wave mode into higher ones on the rejection efficiency are discussed.