Coherence and dissipation of spin-wave eigen modes in magnetic micro- and nano-structures

磁性微纳米结构中自旋波本征模的相干和耗散

• 批准号: 5374487
• 负责人: Professor Dr. Burkard Hillebrands
• 金额: --
• 依托单位: Arbeitsgruppe Magnetismus
• 依托单位国家: 德国
• 项目类别: Priority Programmes
• 财政年份: 2002
• 资助国家: 德国
• 起止时间: 2001-12-31 至 2008-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/5374487?language=en
• 关键词: Coherence; dissipation; spin; wave; eigen

Subject is the spatio-temporal dynamics in lithographically prepared sub-micrometer magnetic islands with domains. Using the Brillouin light scattering technique the spin wave eigenmode spectrum is investigated as a function of the domain structure. The utilization of Brillouin light scattering in the "Fourier microscope" mode allows the determination of the spatial distribution of the spin wave mode intensities and it provides access to spin wave localization effects in individual domains. A second subject is the dynamic coupling between magnetic islands for small island separations.

课题为微影法制备亚微米磁畴磁性岛之时空动力学。利用布里渊光散射技术研究了自旋波本征模谱与畴结构的关系。利用布里渊光散射的“傅立叶显微镜”模式允许的自旋波模式强度的空间分布的确定，它提供了访问在各个域的自旋波本地化效应。第二个主题是小岛分离的磁岛之间的动态耦合。