Cavity Spintronics: Expanding the horizons for microwave, THz, magnetic, and quantum technologies

腔自旋电子学：拓展微波、太赫兹、磁和量子技术的视野

• 批准号: RGPIN-2019-05871
• 负责人: Hu, CanMing
• 金额: $ 5.46万
• 依托单位: University of Manitoba
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2022
• 资助国家: 加拿大
• 起止时间: 2022-01-01 至 2023-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=763005
• 关键词: Cavity; Spintronics; Expanding; horizons; microwave

Cavity Spintronics is a newly developing interdisciplinary field that started around 2014. It utilizes cavity techniques, which have transformed many other disciplines, to investigate the strong light--matter interaction between magnetic materials and electromagnetic waves. Via the quantum physics of spin--photon entanglement on the one hand, and via classical electrodynamic coupling on the other, the emergence of this field connects some of the most exciting modern physics, such as quantum information and quantum optics, with one of the oldest sciences on the earth, magnetism. Now is the right time to harness the new physics of cavity spintronics to expand the horizons for microwave, THz, magnetic, and quantum technologies. Also key to the timing of this proposal is our own research momentum built up in the past 4 years, during which my students and I have made original and unique contributions to reveal and utilize the physics of the cavity magnon polariton (CMP), a versatile quasi-particle that has both spin and photon characteristics.     Building on these opportunities, the goals of my research program are to use cavity spintronics approaches to address the fundamental questions of light--matter interaction in spin-photon coupled systems, and to create novel devices for innovating microwave, THz, magnetic, and quantum technologies. Our unique advantage stems from our world--leading ability to electrically detect CMP with high sensitivity, the ability to directly probe both the amplitude and phase of CMP, the proficiency of fabricating on--chip high--quality cavity circuits, and the capacity of the research infrastructure in my lab which was renovated in the past 5 years with a vast set of tools for performing cavity spintronics experiments at extreme conditions (such as in high magnetic fields, at ultra-low temperatures, and with ac modulations up to high frequencies). We will use these techniques to study ferromagnetic metals, ferromagnetic insulators, antiferromagnets, as well as hybrid devices with tailored functions made of the combination of these materials and high--quality cavities. Examples of key topics that we will work on include inventing the CMP--based solid-state maser, developing non-reciprocal control of microwave transmission, exploring THz cavity spintronics, and facilitating industrial applications of cavity--enhanced sensing. Existing industrial collaborations with researchers at BlackBerryr, Everspin, and OPI Systems will allow rapid translation of advances in my lab into either proof- of- concept or prototype devices for commercial use, and will therefore have a significant impact in the quickly advancing field of cavity spintronics. Funding for this program will be primarily used for supporting 4 graduate and 2 undergraduate students (every year), training them to gain unique skills highly desirable in the knowledge-intensive information and communication technology (ICT) sector of the Canadian economy.

腔体自旋电子学是一个新兴的跨学科领域，始于2014年左右。它利用改变了许多其他学科的腔技术来研究磁性材料和电磁波之间的强光-物质相互作用。一方面通过自旋-光子纠缠的量子物理学，另一方面通过经典电动力学耦合，这个领域的出现将一些最令人兴奋的现代物理学，如量子信息和量子光学，与地球上最古老的科学之一，磁学联系起来。现在是利用腔自旋电子学的新物理学来扩展微波、太赫兹、磁和量子技术的视野的正确时机。这个提议的时机也很关键，这是我们自己在过去4年中建立的研究势头，在此期间，我和我的学生为揭示和利用腔磁振子极化子（CMP）的物理学做出了原创性和独特的贡献，CMP是一种多功能的准粒子，具有自旋和光子特性。 在这些机会的基础上，我的研究计划的目标是使用腔自旋电子学方法来解决自旋光子耦合系统中光与物质相互作用的基本问题，并创建用于创新微波、太赫兹、磁的新型设备和量子技术。我们的独特优势源于我们世界领先的高灵敏度CMP电检测能力，直接探测CMP振幅和相位的能力，以及在芯片上制作高质量腔电路的能力，我的实验室在过去5年里进行了翻新，配备了大量工具，用于在极端条件下进行腔自旋电子学实验（例如在高磁场中、在超低温下以及在高达高频的AC调制下）。我们将使用这些技术来研究铁磁金属，铁磁绝缘体，反铁磁体，以及混合器件与这些材料和高质量腔体的组合制成的定制功能。我们将致力于的关键课题包括发明基于CMP的固态脉泽，开发微波传输的非互易控制，探索THz腔自旋电子学，以及促进腔增强传感的工业应用。与BlackBerryr，Everspin，而OPI系统将允许我的实验室的进步快速转化为商业用途的概念验证或原型设备，并因此将在快速发展的腔自旋电子学领域中产生重大影响。该计划的资金将主要用于支持4名研究生和2名本科生（每年），培训他们获得加拿大经济知识密集型信息和通信技术（ICT）部门非常需要的独特技能。