Development of Advanced Ferromagnetic Resonance Microscopes for Materials Research and Education

用于材料研究和教育的先进铁磁共振显微镜的开发

• 批准号: 0114176
• 负责人: Ichiro Takeuchi
• 金额: $ 10万
• 依托单位: University of Maryland, College Park
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-08-15 至 2003-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0114176&HistoricalAwards=false
• 关键词: Development; Advanced; Ferromagnetic; Resonance; Microscopes

With this award from the Instrumentation for Materials Research Program in the Division of Materials Research, scientists at the University of Maryland will develop a microwave microscope based on the phenomenon of ferromagnetic resonance. Using a novel hemispherical cavity design, which focuses the microwave field, they will attain the spatial resolution of 5 micron or better with an ultimate goal of less than 1 micron. The instrument will allow mapping out many different magnetic properties including magnetization, spin-orbit coupling, and magnetic anisotropy. It will also measure magnetic homogeneity and image local stresses via magnetoelastic coupling. In addition, by using multiple cavity resonance, which range from 5 to 50 GHz, we will also be able to investigate local spin relaxation dynamics. The instrument will play a key role in the education and training of the next generation of students studying magnetic materials.This award from the Instrumentation for Materials Research Program in the Division of Materials Research is for instrument development at the University of Maryland. Scientists at the university of Maryland will develop an innovative scanning probe microscope, which allows mapping of a variety of magnetic properties of materials. Magnetism plays a critical role in many technological applications including magnetic storage and magneto-optic switches for high-speed communications. The microscope will be invaluable for investigating properties that are difficult to study by conventional magnetic techniques. This will also be used to screen combinatorial libraries to aid in the search for novel magnetic materials. This new type of scanning probe microscope will become a useful educational tool by providing spatially resolved images of various properties.

凭借材料研究部材料研究计划仪器的这一奖项，马里兰州大学的科学家们将开发一种基于铁磁共振现象的微波显微镜。使用一种新颖的半球形腔体设计，它集中了微波场，它们将达到5微米或更好的空间分辨率，最终目标是小于1微米。该仪器将允许绘制出许多不同的磁性，包括磁化，自旋轨道耦合和磁各向异性。它还将通过磁弹性耦合测量磁均匀性和图像局部应力。此外，通过使用范围从5到50 GHz的多腔共振，我们也将能够研究局部自旋弛豫动力学。该仪器将在下一代磁性材料学生的教育和培训中发挥关键作用。该奖项由材料研究部材料研究计划仪器授予马里兰州大学的仪器开发。马里兰州大学的科学家们将开发一种创新的扫描探针显微镜，它允许绘制材料的各种磁性。磁性在许多技术应用中起着关键作用，包括用于高速通信的磁存储和磁光开关。显微镜将是非常宝贵的调查性质是难以研究的传统磁性技术。这也将用于筛选组合库，以帮助寻找新的磁性材料。这种新型的扫描探针显微镜将成为一个有用的教育工具，提供各种属性的空间分辨图像。