Materials World Network: Design, Synthesis and Characterization of New Multiferroic Perovskites

材料世界网络：新型多铁性钙钛矿的设计、合成和表征

• 批准号: 0603128
• 负责人: Patrick Woodward
• 金额: $ 16.8万
• 依托单位: Ohio State University Research Foundation -DO NOT USE
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2006
• 资助国家: 美国
• 起止时间: 2006-06-15 至 2009-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0603128&HistoricalAwards=false
• 关键词: Materials; World; Network; Design; Synthesis

This Materials World Network award to Ohio State University is for collaborative research to model, synthesize and characterize new transition metal oxide and pseudo-oxide perovskites, which exhibit multiferroic behavior and/or significant magnetoelectric coupling. This award is co-funded by the Solid State Chemistry Program and the Europe and Eurasia Program in the Office of International Science and Engineering at NSF. Multiferroic materials exhibit ferro-, ferri- or antiferromagnetic ordering in coexistence with ferroelectric ordering. Most, if not all potential applications of multiferroic materials are based on exploitation of the magnetoelectric effect, whereby the electric and magnetic polarizations are coupled. This rare type of coupling, if it can be exploited, would enable completely novel ways of storing, transmitting and processing electronic information including magnetically recorded ferroelectric memory, stationary radar arrays, and RF communications. The project will comprise several mutually interdependent research tasks involving complex mixed-metal oxides that may show both magnetic and electric ordering, synthesis of the high quality single phase materials, complete structural characterization using a combination of variable temperature, high resolution laboratory and synchrotron powder X-ray diffraction, neutron powder diffraction, and transmission electron microscopy techniques. These efforts will be coupled with measurements of the magnetic and electric properties and the coupling between the two, and guided by computational modeling using tools that range from bond valence optimization algorithms to spin dependent density functional band structure calculations. The discovery of new magnetoelectric materials and the exploration of the composition structure property relationships for the above systems can be considered as the main possible outcome of the project. Researchers from Ohio State University (synthesis, basic characterization, computation), Moscow State University (advanced TEM) and the University of Sydney (neutron, x-ray spectroscopy) are involved in this collaborative research with scientists in each location contributing its complementary strengths. This grant will support student and faculty exchanges between the three institutions and will also provide access to state of the art neutron diffraction facilities and high pressure high temperature synthetic capabilities. The award will support research activities and brings together research infrastructure and expertise in a number of areas, including computational modeling of perovskites, high pressure-high temperature synthesis and electron microscopy, and variable temperature neutron and synchrotron diffraction techniques. The award is expected to train future researchers with techniques such as structure determination by combined neutron and X-ray diffraction, transmission electron microscopy, etc., that would give them research experience associated with new and existing neutro

俄亥俄州立大学的这项材料世界网络奖是为了建模，合成和表征新的过渡金属氧化物和伪氧化物钙钛矿的合作研究，这些金属氧化物和伪氧化物具有多种磁性和/或重要的磁电耦合。该奖项由NSF国际科学与工程办公室的固态化学计划以及欧洲和欧亚大陆计划共同资助。多效材料与铁电序共存，表现出铁，铁或抗磁磁有序。 多数（如果不是全部）多种材料的潜在应用是基于对磁电效应的开发，从而将电和磁极耦合。 如果可以利用这种罕见类型的耦合，则可以实现完全新颖的存储，传输和处理电子信息的方法，包括磁记录的铁电内存，固定雷达阵列和RF通信。 该项目将构成几个涉及复杂混合金属氧化物的相互依赖的研究任务，这些研究任务可能显示出磁性和电量的均衡，高质量的单相材料的合成，使用可变温度的组合，高分辨率实验室和同步粉末X射线X射线X射线衍射，中子粉末粉末衍射和传输电子显微镜技术，完整结构表征。这些努力将与磁性和电性能的测量以及两者之间的耦合结合在一起，并通过使用工具进行计算建模的指导，从键价优化算法到自旋依赖密度密度函数谱带结构计算。发现新的磁电材料以及对上述系统的组成结构属性关系的探索可以将其视为项目的主要结果。俄亥俄州立大学的研究人员（综合，基本特征，计算），莫斯科州立大学（高级TEM）和悉尼大学（中子，X射线光谱）与每个位置的科学家参与了这项合作研究，从而有助于其互补的优势。该赠款将支持这三个机构之间的学生和教师交流，还将提供进入最先进的中子衍射设施和高压高温合成能力的访问权限。该奖项将支持研究活动，并汇集许多领域的研究基础设施和专业知识，包括钙钛矿的计算建模，高压高温度合成和电子显微镜以及可变温度中子和同步体衍射技术。预计该奖项将培训未来的研究人员，以诸如中子和X射线衍射，传输电子显微镜等结构确定等技术，这将为他们提供与新和现有的Neutro相关的研究经验