CAREER: Integrating Magnetism into Noncentrosymmetric Frameworks for Spin-based Electronics

职业：将磁性集成到基于自旋电子的非中心对称框架中

• 批准号: 2338014
• 负责人: Thao Tran
• 金额: $ 71.81万
• 依托单位: Clemson University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2024
• 资助国家: 美国
• 起止时间: 2024-03-01 至 2029-02-28
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2338014&HistoricalAwards=false
• 关键词: CAREER; Integrating; Magnetism; into; Noncentrosymmetric

Non-technical summaryImagine smart, compact notebooks with more space to store games, photos, and videos, sleek cell phones with quicker-loading apps and longer battery life, and powerful, unparalleled computers that can solve complex problems much faster than today computers. While such innovative computers and memory devices could revolutionize our lives through energy savings, environmental conservation, national security, and healthcare, it is difficult to unlock the potential of magnetic materials that are the basis of the next generation of electronic architectures. This CAREER award, jointly funded by the Solid State and Materials Chemistry program in NSF’s Division of Materials Research and the Established Program to Stimulate Competitive Research (EPSCoR), aims to develop a deeper understanding of the chemistry-function relationships of solid-state materials potentially hosting tiny magnets, which can twist and turn in a unique way. The twisty dance of these small magnets could enable higher data storage capabilities, faster data access, and more efficient spin-based logic devices. The PI and her team will focus on a particular class of magnetic compounds that lack inversion symmetry in the structure and study how chemical bonding in these materials determines their physical properties. In addition, this CAREER award seeks to improve student STEM competency and promote solid-state materials through the design, refinement, and dissemination of inquiry-based animation called Adventures in Materials Discovery.Technical summaryNoncentrosymmetric magnetic materials hosting topological spin textures (skyrmions) are at the forefront of new technological advances in quantum information science and spintronics. This is owing to topological protection, a strange state wherein the physical properties of electrons are insensitive to defects and noisy environments such as lattice imperfections and room-temperature operations. While impressive achievements have been made in skyrmion materials research, a significant challenge remains as to how chemical bonding and electronic structures give rise to the emergence and intentional modification of skyrmions. The research goal of this CAREER award, jointly funded by the Solid State and Materials Chemistry program in NSF’s Division of Materials Research and the Established Program to Stimulate Competitive Research (EPSCoR), is to provide an efficient set of fundamental chemistry-property guidelines for new noncentrosymmetric magnetic materials that facilitates (or hinders) the formation of skyrmions. To achieve this, the PI and her team adopt combined experimental and computational approaches using state-of-the-art synthetic techniques, magnetic and heat capacity measurements, X-ray diffraction, neutron scattering, and density functional theory calculations. The education goal of this CAREER award is to improve student learning and promote interest in quantum STEM disciplines. The PI and her team will design, refine, and disseminate inquiry-based activities called Adventure in Materials Discovery with five animated modules (Stone Age, Bronze Age, Iron Age, Silicon Age, and Quantum Age) that will engage and excite students and the public about the impacts of solid-state materials in addressing real-world challenges.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

非技术摘要想象一下，智能、紧凑的笔记本电脑有更多的空间来存储游戏、照片和视频，时尚的手机具有更快的应用程序加载速度和更长的电池寿命，以及功能强大、无与伦比的计算机，可以比今天的计算机更快地解决复杂的问题。虽然此类创新的计算机和存储设备可以通过节能、环境保护、国家安全和医疗保健彻底改变我们的生活，但很难释放作为下一代电子架构基础的磁性材料的潜力。该职业奖由 NSF 材料研究部的固态和材料化学项目和刺激竞争性研究既定项目 (EPSCoR) 共同资助，旨在更深入地了解可能含有微小磁铁的固态材料的化学功能关系，这些磁铁可以以独特的方式扭曲和转动。这些小磁铁的扭曲舞蹈可以实现更高的数据存储能力、更快的数据访问和更高效的基于自旋的逻辑设备。 首席研究员和她的团队将重点研究结构中缺乏反演对称性的一类特殊磁性化合物，并研究这些材料中的化学键如何决定其物理特性。此外，该职业奖旨在通过设计、完善和传播名为“材料发现历险记”的探究式动画，提高学生的 STEM 能力并推广固态材料。技术摘要承载拓扑自旋纹理（斯格明子）的非中心对称磁性材料处于量子信息科学和自旋电子学新技术进步的前沿。这是由于拓扑保护，这是一种奇怪的状态，其中电子的物理特性对缺陷和噪声环境（例如晶格缺陷和室温操作）不敏感。尽管斯格明子材料研究取得了令人瞩目的成就，但化学键合和电子结构如何引起斯格明子的出现和有意修饰仍然存在重大挑战。该职业奖的研究目标是为促进（或阻碍）斯格明子形成的新型非中心对称磁性材料提供一套有效的基础化学性质指南，该奖项由 NSF 材料研究部的固态和材料化学项目和刺激竞争研究既定项目 (EPSCoR) 共同资助。为了实现这一目标，PI 和她的团队采用了实验和计算相结合的方法，利用最先进的合成技术、磁容量和热容量测量、X 射线衍射、中子散射和密度泛函理论计算。该职业奖的教育目标是提高学生的学习水平并提高对量子 STEM 学科的兴趣。 PI 和她的团队将设计、完善和传播名为“材料发现历险记”的基于探究的活动，其中包含五个动画模块（石器时代、青铜时代、铁器时代、硅时代和量子时代），这些模块将吸引学生和公众，让他们了解固态材料在应对现实世界挑战方面的影响。该奖项反映了 NSF 的法定使命，并通过使用基金会的知识进行评估，被认为值得支持。 优点和更广泛的影响审查标准。