Magnetic domain wall gratings for magnetization reversal tuning and confined dynamic mode localization.
Magnetic domain wall gratings for magnetization reversal tuning and confined dynamic mode localization.
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DOI：
10.1038/srep30761
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发表时间：
2016-08-04
影响因子：
4.6
通讯作者：
McCord J
中科院分区：
文献类型：
--
作者：
Trützschler J;Sentosun K;Mozooni B;Mattheis R;McCord J
通过局部离子辐照在铁磁-反铁磁薄膜上刻印高密度磁畴壁栅，形成交替的头尾-头尾-尾和头尾-尾-尾空间重叠畴壁网络。独特的磁畴过程是锚定畴壁相互作用的结果。横向分布的磁各向异性相引入了非线性磁化响应。局域变化的磁荷分布产生了直接受窄畴壁核约束的局域化和导向磁化自旋波模式。交换耦合多相材料结构使材料具有前所未有的静态和局部改性动态磁性能。
High density magnetic domain wall gratings are imprinted in ferromagnetic-antiferromagnetic thin films by local ion irradiation by which alternating head-to-tail-to-head-to-tail and head-to-head-to-tail-to-tail spatially overlapping domain wall networks are formed. Unique magnetic domain processes result from the interaction of anchored domain walls. Non-linear magnetization response is introduced by the laterally distributed magnetic anisotropy phases. The locally varying magnetic charge distribution gives rise to localized and guided magnetization spin-wave modes directly constrained by the narrow domain wall cores. The exchange coupled multiphase material structure leads to unprecedented static and locally modified dynamic magnetic material properties.