DMREF: Multifunctional Interfacial Materials by Design

DMREF：多功能界面材料设计

• 批准号: 1234096
• 负责人: Chang-Beom Eom
• 金额: $ 160万
• 依托单位: University of Wisconsin-Madison
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2012
• 资助国家: 美国
• 起止时间: 2012-09-01 至 2016-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1234096&HistoricalAwards=false
• 关键词: DMREF; Multifunctional; Interfacial; Materials; Design

Technical Description: Complex oxides have been fertile ground for new discoveries, due particularly to their wide-ranging electronic, optical, and magnetic properties. Interfaces between complex oxides and related materials create juxtapositions between different symmetries and ordered states, and it has become clear that these interfaces are new materials in their own right and lead to dramatically different properties from those in bulk. This project focuses on an iterative cooperation between forefront theory and experiment that determines the fundamental principles controlling new physical phenomena at oxide interfaces, uses these principles to design couplings between multiple orders at interfaces to generate new functionalities, and experimentally synthesizes and investigates designed interfacial materials for novel electronic devices. These atomic-scale interfacial materials can lead to, for example, new classes of electric-field controllable electronic and magnetic phenomena, and enable the development of new technologically important devices that exploit these couplings. Using a predictive theory and modeling, and feedback to theory from experiments, the research team aims to design, understand, and synthesize novel oxide hetero-interfaces that have unique properties not presently available.Non-technical Description: New approaches to the discovery of materials displaying novel properties are critical for the continued scientific progress in condensed matter science and applications. This project addresses this need with a focus on "oxide interfacial materials," those formed at and near the atomically abrupt boundary between two oxygen-based materials, each of which can exhibit a stunning array of phenomena such as magnetism, piezoelectric behavior, superconductivity, and structural ordering. At the interface, interactions between these functionalities give rise to unexplored nanoscale behaviors. These new interfacial materials are some of the most promising in which to realize new phenomena that will challenge our current understanding, and that will develop new electronic device directions to address our society's technology needs. The project brings a broad educational experience to all students, interacting with faculty members of this research team at five universities, working with scientists at National Laboratories and international institutions, and participating in outreach activities. The faculty and graduate students work with secondary school teachers from the US and Puerto Rico to develop classroom material based on their materials genome learning/research experience.

技术描述：复杂的氧化物已成为新发现的肥沃地面，特别是由于它们的广泛电子，光学和磁性。复杂的氧化物和相关材料之间的接口在不同的对称和有序状态之间产生并置，并且很明显，这些接口本身就是新材料，并且与庞大的界面具有截然不同的特性。该项目的重点是前沿理论与实验之间的迭代合作，这些迭代合作决定了控制氧化物界面上新的物理现象的基本原理，使用这些原理在界面的多个订单之间设计耦合以产生新的功能，并在实验上综合并研究了新型电子设备的界面材料。这些原子尺度的界面材料可能会导致例如新型的电场可控电子和磁现象，并能够开发利用这些耦合的新技术重要的设备。研究小组使用实验的预测理论和建模以及对理论的反馈，旨在设计，理解和合成具有目前尚不可用的独特属性的新型氧化氧化物异方差。Non-Technical描述：发现新型材料的新方法对凝聚态的材料的发现至关重要。该项目以“氧化物界面材料”为重点，该项目在两种基于氧气的材料之间和附近形成的“氧化物界面材料”，每种材料都可以表现出令人惊叹的现象，例如磁性，压电行为，超导性和结构订购。在界面上，这些功能之间的相互作用导致未开发的纳米级行为。这些新的界面材料是实现新现象的最有前途的材料，这些现象将挑战我们当前的理解，并将开发新的电子设备方向来满足我们社会的技术需求。该项目为所有学生带来了广泛的教育经验，与五所大学研究团队的教职员工互动，与国家实验室和国际机构的科学家合作，并参加外展活动。该教师和研究生与来自美国和波多黎各的中学老师合作，​​根据其材料基因组学习/研究经验开发课堂材料。