CAREER: Static and Dynamic Magnetization Properties of Spintronic Devices

职业：自旋电子器件的静态和动态磁化特性

• 批准号: 1452670
• 负责人: Claudia Mewes
• 金额: $ 50万
• 依托单位: University of Alabama Tuscaloosa
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2015
• 资助国家: 美国
• 起止时间: 2015-03-01 至 2021-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1452670&HistoricalAwards=false
• 关键词: CAREER; Static; Dynamic; Magnetization; Properties

This Faculty Early CAREER award proposes theoretical research to investigate the static and dynamic magnetization properties in spin transport electronic (spintronic) devices. Spintronics aims to use the electron spin in addition to its electric charge to develop highly functional and energy efficient devices. In this context a better fundamental understanding of the involved static and dynamic magnetic properties within the confined device setting is of paramount importance for a widespread adoption of spintronic technologies. The complicated interplay of different material parameters and their modifications are essential for the performance of new spintronic devices for their scalability and efficiency. In this project a unique combination of different modeling capabilities will allow a detailed analysis of the functionality of proposed new spintronic devices for energy efficiency in electronics. The main goal of the research project is to enable the theoretical prediction and the computational design of new spintronic materials and devices. In this project the principal investigator will seamlessly integrate educational activities at all levels of education through research experiences for local high school students, undergraduate students and training of graduate students. Based on experience the principal investigator plans to establish "Girls in Physics" events at the University of Alabama with the goal to spark the interest of young female high school students in Alabama in a possible career in science, technology, engineering, and mathematics.A theoretical understanding of the static and dynamic magnetization properties for a widespread adoption of spintronic technologies requires basic knowledge of fundamental mechanisms responsible for magnetization relaxation, anisotropy and spin polarization and their interdependencies within a confined device setting. The proposed research plans to combine first principles and tight-binding calculations for material design with dynamical simulations to predict the functionality of new spintronic devices. The unique combination of different modeling capabilities to allow a complete analysis of the functionality of proposed devices will enable the theoretical prediction and the computational design of new spintronic materials and devices. In addition, the proposed research will lead to a better fundamental understanding of the complicated interdependencies of the involved material parameters within a confined device setting.

该学院早期职业奖提出了理论研究，以研究自旋输运电子（自旋电子）器件中的静态和动态磁化特性。 自旋电子学的目标是利用电子自旋和电荷来开发功能强大且节能的设备。 在这种情况下，更好地了解受限器件环境中所涉及的静态和动态磁特性对于自旋电子技术的广泛采用至关重要。 不同材料参数及其修改的复杂相互作用对于新型自旋电子器件的可扩展性和效率的性能至关重要。 在该项目中，不同建模功能的独特组合将允许对所提出的新型自旋电子器件的功能进行详细分析，以提高电子产品的能效。 该研究项目的主要目标是实现新型自旋电子材料和器件的理论预测和计算设计。 在这个项目中，首席研究员将通过对当地高中生、本科生的研究经验和研究生的培训，无缝整合各级教育的教育活动。 根据经验，首席研究员计划在阿拉巴马大学举办“物理学女孩”活动，目的是激发阿拉巴马州年轻女高中生对科学、技术、工程和数学领域可能职业的兴趣。为了广泛采用自旋电子技术，对静态和动态磁化特性的理论理解需要对负责磁化弛豫、各向异性和自旋极化及其在受限器件设置内的相互依赖性的基本机制的基本了解。 拟议的研究计划将材料设计的第一原理和紧束缚计算与动态模拟结合起来，以预测新型自旋电子器件的功能。 不同建模功能的独特组合可以对所提出的器件的功能进行完整分析，从而实现新自旋电子材料和器件的理论预测和计算设计。 此外，所提出的研究将有助于更好地理解受限设备环境中所涉及材料参数的复杂相互依赖性。