Trützschler Julia, Sentosun Kadir, Mozooni Babak, Mattheis Roland, McCord Jeffrey
Institute for Materials Science, Kiel University, Kiel, Germany.
Leibniz Institute of Photonic Technology IPHT Jena, Jena, Germany.
Sci Rep. 2016 Aug 4;6:30761. doi: 10.1038/srep30761.
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.
通过局部离子辐照在铁磁-反铁磁薄膜中印刻高密度磁畴壁光栅，由此形成交替的头-尾-头-尾和头-头-尾-尾空间重叠畴壁网络。锚定畴壁的相互作用产生了独特的磁畴过程。横向分布的磁各向异性相引入了非线性磁化响应。局部变化的磁荷分布产生了直接受窄畴壁核心约束的局域化和引导磁化自旋波模式。交换耦合多相材料结构导致了前所未有的静态和局部改性动态磁材料特性。
