DomMagDzMo_Domain wall dynamics and magnetic texture behavior in magnetic films with Dzyaloshinskii-Moriya interaction

DomMagDzMo_Dzyaloshinskii-Moriya 相互作用磁性薄膜中的磁畴壁动力学和磁性织构行为

• 批准号: 380525191
• 负责人: Professor Dr.-Ing. Jeffrey McCord
• 金额: --
• 依托单位: Uniwersytet w Białymstoku
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2017
• 资助国家: 德国
• 起止时间: 2016-12-31 至 2020-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/380525191?language=en
• 关键词: DomMagDzMo_Domain; wall; dynamics; magnetic; texture

Magnetic structures, like chiral domain walls, and topological structures, like vortices and skyrmions, are the foundation for future solid state magnetic information technologies. A variety of theoretical studies predict intriguing phenomena for the propagation of micromagnetic objects in such structures. The goal of the project is to obtain a fundamental understanding of the manipulation of micromagnetic structures in connection with static and dynamic properties of magnetic thin films. The focus of the project is on the investigation of the high-frequency response of nearly free magnetic heterostructures to external stimuli. Epitaxial thin film systems with variable magnetic anisotropy contributions and confined spin structures will be spanned and magnetic field, thermo-optical, and spin current induced magnetization dynamics will be investigated by combined high temporally and high spatially resolved imaging methods. The investigations of the tailored structures are backed by complementary magnetic property measurements and micromagnetic calculations. Combining simulations and time resolved real-time imaging will clarify the underlying physical mechanisms. The research will pro¬vide a fundamental contribution to the realization of envisioned new memory technologies.

磁结构（如手征畴壁）和拓扑结构（如涡旋和skyrmions）是未来固态磁信息技术的基础。各种理论研究预测了微磁性物体在这种结构中传播的有趣现象。该项目的目标是获得与磁性薄膜的静态和动态特性有关的微磁结构操纵的基本理解。该项目的重点是研究近自由磁性异质结构对外部刺激的高频响应。具有可变磁各向异性贡献和受限自旋结构的外延薄膜系统将被跨越，磁场，热光和自旋电流诱导的磁化动力学将通过组合高时间和高空间分辨成像方法进行研究。定制结构的研究得到了互补磁特性测量和微磁计算的支持。结合模拟和时间分辨实时成像将澄清潜在的物理机制。该研究将为实现所设想的新存储器技术做出根本性贡献。