Materials Research Science and Engineering Center: Quantum and Spin Phenomena in Nanomagnetic Structures

材料研究科学与工程中心：纳米磁性结构中的量子和自旋现象

• 批准号: 0820521
• 负责人: Evgeny Tsymbal
• 金额: $ 632.19万
• 依托单位: University of Nebraska-Lincoln
• 依托单位国家: 美国
• 项目类别: Cooperative Agreement
• 财政年份: 2008
• 资助国家: 美国
• 起止时间: 2008-09-01 至 2015-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0820521&HistoricalAwards=false
• 关键词: Materials; Research; Science; Engineering; Center

The Materials Research Science and Engineering Center (MRSEC) at the University of Nebraska supports an interdisciplinary research program on Quantum and Spin Phenomena in Nanomagnetic Structures (QSPINS). The MRSEC's research is centered on studies of new magnetic materials and structures at the nanometer scale, with the aim of developing fundamental understanding of their properties and related phenomena important for advanced technological applications. QSPINS is organized into two interdisciplinary research groups (IRGs). IRG1 'Nanoscale Magnetism: Structures, Materials and Phenomena' focuses on fundamental physics, chemistry, and materials issues in nanoscale magnets, addressing important quantum, electronic structure, nanofabrication, high-sensitivity measurements, and magnetization-dynamics problems. Nanostructuring has reached a length scale where quantum approaches are needed, and this IRG brings a unique combination of theory, modeling, and new fabrication and measurement methods to the study of novel materials and phenomena. The expected outcomes are new insights into phenomena and structures important for the development of novel cluster-assembled materials, higher energy-density permanent magnets, and information-technology materials. IRG2 'Magnetoelectric Interfaces and Spin Transport' employs the electron spin in a synergistic combination with novel nanoscale magnetic and ferroelectric structures to manipulate spin-dependent properties to yield new scientific concepts and achieve enhanced functionalities. Designed magnetoelectric and piezomagnetic heterostructures are to be investigated where the interplay between electricity, elasticity, and magnetism across interfaces manifests interesting unexplored phenomena, such as electrically-controlled exchange bias and magneto-crystalline anisotropy, and ferroelectrically-tailored spin transport. QSPINS's education and outreach programs encourage gifted young people to pursue scientific careers, broaden the participation of underrepresented groups in science through targeted programs, and improve materials literacy among the general public. As an integral part of the Center, QSPINS offers interdisciplinary training for the next generation of materials scientists and engineers by providing regional four-year institutions experience and tools to improve their materials science programs and curricula, offering opportunities for middle- and high-school teachers and their students to learn about materials science, and by addressing pre-college segments of the educational pipeline via targeted outreach activities. QSPINS maintains shared experimental and computational facilities and supports exploratory Seed Projects to provide continual revitalization of the projects and investigators and promote new interdisciplinary collaborations. QSPINS fosters interactions with industrial companies to leverage the expected scientific innovations for potential technological advances.

内布拉斯加州大学材料研究科学与工程中心(MRSEC)支持一项关于纳米磁性结构中的量子和自旋现象(QSPINS)的跨学科研究计划。MRSEC的研究集中在纳米级的新磁性材料和结构的研究上，目的是加深对其性质和相关现象的基本了解，这些现象对先进技术应用非常重要。QSPINS由两个跨学科研究小组(IRGS)组成。IRG1“纳米磁性：结构、材料和现象”主要研究纳米磁体的基本物理、化学和材料问题，解决重要的量子、电子结构、纳米制造、高灵敏度测量和磁化动力学问题。纳米结构已经达到了需要量子方法的长度范围，这种IRG将理论、建模以及新的制造和测量方法的独特结合带到了新材料和现象的研究中。预期的结果是对现象和结构的新见解，这些现象和结构对于开发新型集束组装材料、更高能量密度的永磁体和信息技术材料非常重要。IRG2‘磁电界面和自旋传输’利用电子自旋与新的纳米尺度磁性和铁电结构的协同组合来操纵与自旋相关的性质，从而产生新的科学概念并实现增强的功能。设计的磁电和压磁异质结构将被研究，其中电、弹性和磁之间的相互作用表现出有趣的未被探索的现象，例如电控交换偏置和磁晶各向异性，以及铁电定制的自旋输运。QSPINS的教育和推广计划鼓励有天赋的年轻人追求科学事业，通过有针对性的计划扩大未被充分代表的群体对科学的参与，并提高普通公众的材料素养。作为该中心不可或缺的一部分，QSPINS为下一代材料科学家和工程师提供跨学科培训，为地区四年制机构提供经验和工具，以改进他们的材料科学课程和课程，为初中和高中教师及其学生提供学习材料科学的机会，并通过有针对性的外联活动解决大学前教育渠道中的部分问题。QSPINS维护共享的实验和计算设施，并支持探索性种子项目，以提供项目和研究人员的持续振兴，并促进新的跨学科合作。QSPINS促进与工业公司的互动，以利用预期的科学创新来实现潜在的技术进步。