Tailored and switchable high frequency properties - Domain configurations and observation of magnetization dynamics in nanostructured ferromagnetic films

定制和可切换的高频特性 - 纳米结构铁磁薄膜中的磁域配置和磁化动力学观察

• 批准号: 175224688
• 负责人: Professor Dr.-Ing. Jeffrey McCord
• 金额: --
• 依托单位: Arbeitsgruppe Nanoscale Magnetic Materials - Magnetic Domains
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2010
• 资助国家: 德国
• 起止时间: 2009-12-31 至 2017-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/175224688?language=en
• 关键词: Tailored; switchable; frequency; properties; Domain

The focus of the project is on the correlation of artificially generated magnetic domains and domain wall configurations with the magneto-dynamic response of magnetic micro- and nanostructures. By introducing different magnetization configurations, the effective magnetic properties of large area thin film structures, then acting as a unique effective magnetic media, will be tailored and the corresponding behavior will be investigated. Using various methods of magnetic domain control, the dynamic magnetization response, the dynamic magnetic permeability, and related spin wave behavior will be influenced. Variable magnetization configurations are set by periodic micro- and nanopatterning, also in combination with thermal post-processing. Various approaches for generating such structures are investigated, by which the foundations for optimized functionality in the area of applied magnetization dynamics will be established. The main focus is on switchable high-frequency characteristics of large-area micro- and nanoscale structures.

该项目的重点是人工生成的磁畴和磁畴壁配置与磁性微纳米结构的磁动力学响应的相关性。通过引入不同的磁化结构，大面积薄膜结构的有效磁特性，然后作为一个独特的有效磁介质，将被定制和相应的行为进行了研究。使用磁畴控制的各种方法，动态磁化响应、动态磁导率和相关的自旋波行为将受到影响。通过周期性的微图案化和纳米图案化，还结合热后处理来设置可变的磁化配置。研究了产生这种结构的各种方法，通过这些方法，将建立在应用磁化动力学领域中的优化功能的基础。主要关注的是大面积微米和纳米结构的可切换高频特性。

项目成果

Direct observation of closure domain wall mediated spin waves

• DOI: 10.1063/1.4927598
• 发表时间: 2015-07-27
• 期刊: APPLIED PHYSICS LETTERS
• 影响因子: 4
• 作者: Mozooni, Babak;McCord, Jeffrey
• 通讯作者: McCord, Jeffrey

Magnetization dynamics of buckling domain structures in patterned thin films

图案化薄膜中屈曲域结构的磁化动力学

• DOI: 10.1103/physrevb.86.054426
• 发表时间: 2012
• 期刊: Physical Review B
• 影响因子: 3.7
• 作者: C. Patschureck;K. Lenz;M. O. Liedke;M. U. Lutz;T. Strache;I. Mönch;R. Schäfer;L. Schultz;J. McCord
• 通讯作者: J. McCord

Component selection in time-resolved magneto-optical wide-field imaging for the investigation of magnetic microstructures

用于研究磁性微结构的时间分辨磁光宽场成像中的组件选择

• DOI: 10.1016/j.jmmm.2017.01.091
• 发表时间: 2017
• 期刊: Journal of Magnetism and Magnetic Materials
• 影响因子: 2.7
• 作者: R.B. Holländer;C. Müller;M. Lohman;B. Mozooni;J. McCord
• 通讯作者: J. McCord

Homogeneous microwave field emitted propagating spin waves: Direct imaging and modeling

均匀微波场发射传播自旋波：直接成像和建模

• DOI: 10.1016/j.jmmm.2017.06.053
• 发表时间: 2018
• 期刊: Journal of Magnetism and Magnetic Materials
• 影响因子: 2.7
• 作者: M. Lohman;B. Mozooni;J. McCord
• 通讯作者: J. McCord

Advanced magneto-optical microscopy: Imaging from picoseconds to centimeters - imaging spin waves and temperature distributions (invited)

• DOI: 10.1063/1.4943760
• 发表时间: 2016-05-01
• 期刊: AIP ADVANCES
• 影响因子: 1.6
• 作者: Urs, Necdet Onur;Mozooni, Babak;McCord, Jeffrey
• 通讯作者: McCord, Jeffrey