Collaborative Research: U.S.-Ireland R&D Partnership Antiferroelectricity, Ferrielectricity and Ferroelectricity in the Archetypal Antiferroelectric PbZrO3 at Small Scale

合作研究：美国-爱尔兰 R

• 批准号: 2219477
• 负责人: Sergey Lisenkov
• 金额: $ 25.45万
• 依托单位: University of South Florida
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2022
• 资助国家: 美国
• 起止时间: 2022-07-15 至 2026-06-30
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2219477&HistoricalAwards=false
• 关键词: Collaborative; Research; U.S.; Ireland; R&D

NON-TECHNICAL SUMMARYWith support from the Ceramics Program in NSF’s Division of Materials Research, this collaborative effort, between two US-based institutions and two European counterparts in Northern Ireland and the Republic of Ireland, attempts to better understand material functionalities from milli- and centi-meter to nano-meter length scales. Specifically, this project will address the nanoscale organization of electrical dipoles in oxides that can collectively lead to presence or absence of switchable polarization at larger length scales. When successful, this research will enable the next-generation micro- and nano-scale high-force and high-displacement actuators and transducers, ultrahigh energy storage devices, miniaturized voltage regulators, solid-state cooling, electro-optic and electronic devices. Example application areas include next-generation remote-controlled robotic devices in healthcare (including micro-surgery), manufacturing, agriculture, disaster management, health and rescue operations, and compact lightweight aerospace applications. Additionally, the close collaboration of team members, with expertise spanning processing, advanced characterization methods and materials theory, will result in an unsurpassed and rounded learning experience for the students involved in this research. The training of the students and young researchers during this program will result in skilled human capital, suited to either continue advanced research or make a valuable impact in related industries.TECHNICAL SUMMARYThe overarching goal of this work, supported by the Ceramics Program in NSF’s Division of Materials Research, is to advance the fundamental understanding of antiferroelectricity in PbZrO3 thin films and nanostructures, through multipronged theoretical and experimental studies of nanoscale polarization. Specifically, this work will correlate microscopic structural changes with macroscopic properties in this archetypal antiferroelectric, exploring the stability of classical antiferroelectric (AFE), ferrielectric (FiE), and ferroelectric (FE) behavior in PbZrO3 thin films and nanostructures as a function of: (1) thickness reduction with distributed residual stress/strain profiles; (2) size confinement resulting in a range of surface-to-volume ratios with reduced lateral constraint; and (3) crystallographic orientation of the films, where a large inherent anisotropy in the material might result in different stabilization criteria and hence, different critical parameters (external electric fields, temperature, size) for transitions between AFE, FiE and FE behaviors. In parallel, theoretical efforts will evaluate material behavior at increasing size from the nanoscale, offering insights into transition(s) from the nanoscale-stable ferroelectric phase, to an (intermediate) ferrielectric phase, to the macroscale and bulk-stable and archetypal antiferroelectric one. The training of the students and young researchers during this program will result in skilled human capital, suited to either continue advanced research or make a valuable impact in related industries.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.

NSF材料研究部的陶瓷计划的非技术摘要，这是美国两个基于美国的机构与北爱尔兰和爱尔兰共和国的两个欧洲同行之间的合作工作，试图更好地了解来自Milli-Meti和Centi-Meter到纳米米长度尺度的材料功能。具体而言，该项目将解决氧化物中电偶极子的纳米级组织，这些组织可以集体导致或不存在更大的长度尺度的可切换极化。成功后，这项研究将使下一代微型和纳米级的高力和高置换执行器和传感器，超高储能设备，微型电压调节器，固态冷却，电气光电和电子设备。示例应用领域包括医疗保健中的下一代遥控机器人设备（包括微手术），制造，同意，灾难管理，健康和救援操作以及紧凑的轻量级航空航天应用。此外，团队成员的密切合作，具有跨越处理，高级表征方法和材料理论的专业知识，将为参与这项研究的学生提供无与伦比且圆润的学习经验。 The training of the students and young researchers during this program will result in skilled human capital, suited to either continue advanced research or make a valuable impact in related industries.TECHNICAL SUMMARYThe overarching goal of this work, supported by the Ceramics Program in NSF’s Division of Materials Research, is to advance the fundamental understanding of antiferroelectricity in PbZrO3 thin films and nanostructures, through multipronged theoretical and experimental studies of纳米级极化。具体而言，这项工作将将显微镜结构变化与宏观特性相关联，在这种原型抗fiferroelectric中，探讨了经典的抗fiferroleclelectric（AFE），Ferrielectric（Fie）和铁电极（FE）在PBZRO3薄膜和纳米构造中的稳定性（FERELIELECTRICRICRICTRIC（FIE）（FIE）和铁（FE）行为，其构造与分布型（1）构造均匀性均匀性（1）（1）（1）（1）（1）（1）（1）（1）（1）（1）（1）（1）（1）（1）（1）（1）（1）（1）（1）（1）（1）。 （2）尺寸限制导致一系列表面与体积比率，横向约束降低； （3）薄膜的晶体学取向，其中材料中大的遗传各向异性可能会导致不同的稳定标准，因此，在AFE，FIE和FE行为之间过渡时，不同的临界参数（外部电场，温度，尺寸）。同时，理论上的工作将评估纳米级的材料行为的增加，从纳米级稳定的铁电性阶段到（中间）铁晶阶段的过渡，再到宏观尺度和散装型抗抗抗抗原型。在此计划中，学生和年轻研究人员的培训将导致熟练的人力资本，适合继续进行高级研究或对关联行业产生宝贵的影响。该奖项反映了NSF的法定任务，并被认为是通过基金会的智力优点和更广泛的影响来通过评估来获得的支持。

项目成果

Ferrielectricity in the Archetypal Antiferroelectric, PbZrO 3

原型反铁电体 PbZrO 3 中的亚铁电性

• DOI: 10.1002/adma.202206541
• 发表时间: 2022
• 期刊: Advanced Materials
• 影响因子: 29.4
• 作者: Yao, Yulian;Naden, Aaron;Tian, Mengkun;Lisenkov, Sergey;Beller, Zachary;Kumar, Amit;Kacher, Josh;Ponomareva, Inna;Bassiri‐Gharb, Nazanin
• 通讯作者: Bassiri‐Gharb, Nazanin