U.S.-Czech Materials Research: Optimization of Magneto-Optical Nanostructures for High Frequency Applications

这个美国-捷克研究项目涉及科罗拉多斯普林斯的科罗拉多大学的Radek Lopusnik、Zbigniew Celinski和Robert Camley以及布拉格查尔斯大学的Stefan Visnovsky。 他们的目标是优化磁性多层结构，用于高频磁光探测和采样。 这项国际合作得益于美国集团在磁化动力学和高质量样品制备方面的专业知识，并得到捷克合作伙伴在磁光光谱学方面的优势的补充。捷克团队将通过磁光（MO）光谱、铁磁共振、光散射和时间分辨磁光来研究一系列多层结构。 他们打算提取光学和磁光常数，通过使用一个发达的模型MO响应建议结构具有高磁光品质因数和高presessional频率。 在研究了多个磁性层的影响、理论计算以及尝试生长有前景的纳米结构之后，研究人员希望继续努力在悬臂梁上存款最佳结构并进行测试测量。 如果成功，结果可能适用于微波辐射场的检测，这可能导致提高识别印刷电路板和集成电路上隐藏的电磁干扰源的能力。这个凝聚态物理学项目实现了通过使美国和中欧的专家能够联合收割机互补人才并在相互感兴趣和有能力的领域共享研究资源来推进科学知识的计划目标。 更广泛的影响包括通过在捷克机构的工作将美国学生介绍给国际材料研究界，并直接参与该项目的磁光方法。

This U.S.-Czech research project involves Radek Lopusnik, Zbigniew Celinski, and Robert Camley of the University of Colorado at Colorado Springs and Stefan Visnovsky of Charles University, Prague. Their goal is to optimize magnetic multilayered structures for applications in high frequency magneto-optical probing and sampling. The international collaboration benefits from the expertise of the U.S. group in magnetization dynamics and quality sample preparation and is complemented by the Czech partners' strengths in magneto-optical spectroscopy.Together the U.S.-Czech team will investigate a series of multilayered structures by means of magneto-optical (MO) spectroscopy, ferromagnetic resonance, light scattering and time-resolved magneto-optics. They intend to extract optical and magneto optical constants by using a developed model for MO response to suggest structures with both a high magneto-optical figure of merit and high presessional frequency. After studies of the influences of multiple magnetic layers, theoretical calculations, and attempts to grow promising nanostructures, the researchers hope proceed with efforts to deposit the best structure on a cantilever and perform test measurements. If successful, results may be applicable to detection of microwave radiated fields which could lead to improved ability to identify hidden electromagnetic interference sources on printed circuit boards and integrated circuits. This project in condensed matter physics fulfills the program objective of advancing scientific knowledge by enabling experts in the United States and Central Europe to combine complementary talents and share research resources in areas of strong mutual interest and competence. Broader impacts include the introduction of U.S. students to the international materials research community through work at the Czech institution and direct involvement in the project's magneto-optical methods.