CAREER: Magnetization Dynamics and Damping in Magnetic Nanostructures

****非技术摘要****本学院早期职业奖资助研究磁化动力学以及磁性纳米结构中磁化的阻尼。更好地理解磁性纳米结构中的磁化动力学及其阻尼对于自旋电子学的研究领域至关重要，自旋电子学的目标是利用电子的量子力学性质“自旋”来开发具有新功能的电子器件。在这种情况下，磁化的阻尼将是一个关键因素，例如，最小化自旋电子器件的总功耗。该项目将研究现有的材料系统以及新材料，但也将研究使用磁性纳米颗粒进行高频生物传感的可行性，这将有许多可能的应用。该项目将通过对当地高中生和本科生的研究经验以及研究生的培训，无缝整合各级教育的教育活动。此外，将设计和开发与该职业项目有关的在线教育材料，并将向公众开放。****技术摘要****了解磁性纳米结构中的磁化动力学和阻尼对自旋电子学的许多方面都具有重要意义，自旋电子学是一个研究领域，旨在利用电子自旋来实现新的电子器件。该学院早期职业奖资助研究磁性纳米结构的磁化动力学和阻尼。宽带铁磁共振技术将用于研究磁化动力学和阻尼：(a)铁磁体/反铁磁体结构，包括使用离子辐照修饰的系统，预计将为这些结构中双磁子散射的作用提供新的见解；(b)包括B2有序合金在内的新型自旋电子材料，旨在为未来低阻尼材料的发展提供指导；(c)磁性纳米颗粒，旨在研究高频生物传感的可行性。该项目将通过对当地高中生和本科生的研究经验以及研究生的培训，无缝整合各级教育的教育活动。此外，将设计和开发与该职业项目有关的在线教育材料，并将向公众开放。

****NON-TECHNICAL ABSTRACT****This Faculty Early CAREER award funds research to investigate magnetization dynamics as well as the damping of the magnetization in magnetic nanostructures. A better understanding of the magnetization dynamics and its damping in magnetic nanostructures is of fundamental importance for the research area of spintronics, which targets the use of a quantum mechanical property of the electron known as "spin" to develop electronic devices with new functionality. In this context the damping of the magnetization will be a key factor, for example, to minimize the overall power consumption of spintronic devices. This project will investigate established material systems as well as new materials, but will also investigate the feasibility of high frequency biosensing using magnetic nanoparticles, which would have a number of possible applications. This project will seamlessly integrate education activities at all levels of education through research experiences for local high-school and undergraduate students and training of graduate students. In addition online educational material pertaining to this CAREER project will be designed and developed and will be made accessible for the general public.****TECHNICAL ABSTRACT****Understanding the magnetization dynamics and damping in magnetic nanostructures is of fundamental importance for many aspects of spintronics, a research area that targets the use of the electron spin to implement new electronic devices. This Faculty Early CAREER award funds research to investigate the magnetization dynamics and damping in magnetic nanostructures. Broadband ferromagnetic resonance techniques will be used to investigate the magnetization dynamics and damping in: (a) ferromagnet/antiferromagnet structures including systems modified using ion irradiation, expected to provide new insights in the role of two-magnon scattering in these structures; (b) new spintronic materials including B2 ordered alloys, aimed at providing guidance for the future development of low damping materials; (c) magnetic nanoparticles, aimed at investigating the feasibility of high frequency biosensing. This project will seamlessly integrate education activities at all levels of education through research experiences for local high-school and undergraduate students and training of graduate students. In addition online educational material pertaining to this CAREER project will be designed and developed and will be made accessible for the general public.