Epitaxial Ceramic Nanocomposites by Design

外延陶瓷纳米复合材料的设计

• 批准号: 1911792
• 负责人: Caroline Ross
• 金额: $ 50万
• 依托单位: Massachusetts Institute of Technology
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2019
• 资助国家: 美国
• 起止时间: 2019-06-01 至 2023-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1911792&HistoricalAwards=false
• 关键词: Epitaxial; Ceramic; Nanocomposites; Design

NON-TECHNICAL DESCRIPTION: The capabilities of electronic devices can be improved by incorporating new ceramic materials into the traditional manufacturing process. Magnetic and ferroelectric materials are particularly appealing because they enable data to be stored and manipulated, and unlike conventional semiconductor devices, the information is preserved even without power. This research is developing new composite oxide materials with precisely tailored structures on the nanoscale and attractive magnetic, optical and electronic properties that could be used in applications such as new types of microelectronic memory or logic devices, or filtration membranes with designed porosity. Graduate students are being trained in interdisciplinary science and engineering fields including materials design, measurement, and modeling, which prepares them for employment in the high-tech sector. TECHNICAL DETAILS: The route to enhanced functionality in electronic and magnetic devices occurs through the use of new materials and structures, and oxide materials in particular exhibit a wide range of highly tunable magnetic, optical and electronic properties. In this research, oxide nanostructures are being created by self-assembly, consisting of two different materials with precisely engineered nanoscale geometries. The properties of the nanocomposites differ qualitatively from those of the individual bulk materials due to coupling of the two phases at the interfaces and can be tuned via the composition, crystal structure, size, shape and interface geometry of the two phases. Through appropriate materials selection and design, these nanocomposites can display exciting properties including high conduction at interfaces, enhanced ferroelectricity and magnetoelectric coupling that are either absent or difficult to modulate in single-phase materials. The overall goal of the research is to develop strategies to synthesize ceramic nanocomposites by design, in which the morphology and 3D arrangement of the two phases can be controlled, their properties are explored, and device applications and manufacturing strategies (including growth methods compatible with semiconductor fabrication) are developed. These materials may be used in applications such as new types of microelectronic memory or logic devices, or filtration membranes with designed porosity. The research is training students in interdisciplinary STEM fields that span thin film processing, materials characterization, and modeling of structure, strain and electronic properties. Within this project, online educational materials are being developed and public outreach is being conducted through an activity called the NanoObservatory, in which lithography and microscopy are demonstrated.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.

非技术描述：电子设备的性能可以通过在传统制造工艺中加入新的陶瓷材料而得到改善。磁性和铁电材料特别吸引人，因为它们可以存储和操作数据，而且与传统的半导体设备不同，即使没有电源，信息也能保存下来。这项研究正在开发新的复合氧化物材料，这些材料具有精确定制的纳米级结构和吸引人的磁性、光学和电子特性，可用于新型微电子存储器或逻辑器件，或具有设计孔隙度的过滤膜等应用。研究生正在接受跨学科科学和工程领域的培训，包括材料设计、测量和建模，为他们在高科技领域的就业做好准备。技术细节：增强电子和磁性器件功能的途径是通过使用新材料和结构，特别是氧化物材料表现出广泛的高度可调的磁性、光学和电子特性。在这项研究中，氧化物纳米结构是通过自组装创建的，由两种不同的材料组成，具有精确的纳米级几何形状。由于两相在界面处的耦合作用，纳米复合材料的性能与单个块状材料的性能有质的不同，并且可以通过两相的组成、晶体结构、尺寸、形状和界面几何形状来调节。通过适当的材料选择和设计，这些纳米复合材料可以显示出令人兴奋的特性，包括界面的高导电性，增强的铁电性和磁电耦合，这些特性在单相材料中是不存在的或难以调制的。本研究的总体目标是开发设计合成陶瓷纳米复合材料的策略，其中可以控制两相的形态和3D排列，探索其性能，并开发器件应用和制造策略（包括与半导体制造兼容的生长方法）。这些材料可用于诸如新型微电子存储器或逻辑器件，或具有设计孔隙度的过滤膜等应用。该研究旨在培养跨学科STEM领域的学生，涵盖薄膜加工、材料表征以及结构、应变和电子特性建模。在这个项目中，正在开发在线教育材料，并通过一项名为纳米天文台的活动进行公众宣传，其中展示了光刻和显微镜技术。该奖项反映了美国国家科学基金会的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。

项目成果

Magnetism and microstructure of co-deposited yttrium iron garnet-barium titanate films

• DOI: 10.1063/5.0128306
• 发表时间: 2022-12
• 期刊: Applied Physics Letters
• 影响因子: 4
• 作者: Ting Su;C. Ross

Exsolution Synthesis of Nanocomposite Perovskites with Tunable Electrical and Magnetic Properties

• DOI: 10.1002/adfm.202108005
• 发表时间: 2021-11
• 期刊: Advanced Functional Materials
• 影响因子: 19
• 作者: Jiayue Wang;Komal Syed;S. Ning;I. Waluyo;A. Hunt;E. Crumlin;A. Opitz;C. Ross;W. Bowman;B. Yildiz

Magnetic Properties and Growth‐Induced Anisotropy in Yttrium Thulium Iron Garnet Thin Films

• DOI: 10.1002/aelm.202100452
• 发表时间: 2021-07
• 期刊: Advanced Electronic Materials
• 影响因子: 6.2
• 作者: E. Rosenberg;K. Litzius;J. Shaw;G. Riley;G. Beach;H. Nembach;C. Ross

Magnetism and site occupancy in epitaxial Y-rich yttrium iron garnet films

外延富 Y 钇铁石榴石薄膜的磁性和位点占据

• DOI: 10.1103/physrevmaterials.5.094403
• 发表时间: 2021
• 期刊: Physical Review Materials
• 影响因子: 3.4
• 作者: Su, Tingyu;Ning, Shuai;Cho, Eunsoo;Ross, Caroline A.
• 通讯作者: Ross, Caroline A.