CAREER: Interplay of sliding ferroelectricity, spin and charge orderings in layered quantum materials
职业:层状量子材料中滑动铁电性、自旋和电荷排序的相互作用
基本信息
- 批准号:2237761
- 负责人:
- 金额:$ 66.22万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Continuing Grant
- 财政年份:2023
- 资助国家:美国
- 起止时间:2023-04-01 至 2028-03-31
- 项目状态:未结题
- 来源:
- 关键词:
项目摘要
Non-technical abstract:This project focuses on understanding of properties of a new class of quantum materials with unique properties, known as two-dimensional layered materials. By modeling, characterizing, and engineering the novel physics, this research aims to understand the materials properties and achieve their control. These materials can establish a new platform for energy-efficient and high-speed memory and logic devices, and compact and programmable quantum simulators to address the growing information and energy demands. Integrated with the research, the project aims to promote participation in STEM, focusing on undergraduates and K-12 teachers from groups historically underrepresented in STEM and from rural areas in Wisconsin. The PI partners with the Materials Research Science and Engineering Centers (MRSEC) education group and Engineering EXPO at the University of Wisconsin-Madison to organize “2D ferroelectrics for energy-efficient future” education and outreach program including nanomaterials research, STEM education activities development for high school classrooms, and professional development seminars.Technical abstract:Two-dimensional (2D) layered materials are promising quantum material platforms with many important electronic properties, such as magnetism, strong electron correlation, superconductivity, and ferroelectricity. However, the interplay of ferroelectricity and other quantum properties is significantly unexplored because most current 2D quantum materials are nonpolar. Such scarcity hinders many exciting research subjects such as 2D multiferroics, dipolar Hubbard model, reconfigurable charge orderings, and superconducting diode effects. Recent discoveries of “sliding ferroelectricity” from polar stacking of nonpolar layers indicate it is possible to design ferroelectrics out of the vast majority of 2D materials with parent nonpolar compounds. The ferroelectricity can be switched via interlayer sliding, where the ultralow van der Waals sliding barrier is much smaller than that of any other ferroelectrics. The PI’s approach is to design and assemble various nonpolar 2D magnetic monolayers into polar stacking structures, where spin and charge orderings are hypothesized to be sensitive to ferroelectricity-driven stacking evolution. To fully understand the new quantum orderings and coupling physics, the research team use an in-house multimodal optical, electrical, and magnetic characterization platform to enable simultaneous access to ferroelectricity, magnetism, and electron correlation at various spatial, temporal, and energy scales. Furthermore, the PI will quantify and dynamic control of coupling strength by electrostatic doping and ultrafast light engineering. The research will advance the understanding of many-body interplay in two-dimensional quantum materials and pave the way for device applications using developed polar and Moiré 2D magnets in low-power electronics, ultrahigh-speed spintronics, and reconfigurable quantum simulation.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.
非技术摘要:该项目的重点是了解一类具有独特性质的新型量子材料的性质,称为二维层状材料。通过对新物理进行建模、表征和工程化,本研究旨在了解材料特性并实现其控制。这些材料可以为节能和高速存储器和逻辑器件以及紧凑和可编程的量子模拟器建立新的平台,以满足不断增长的信息和能源需求。与研究相结合,该项目旨在促进STEM的参与,重点关注来自STEM历史上代表性不足的群体和来自威斯康星州农村地区的本科生和K-12教师。PI与材料研究科学与工程中心(MRSEC)教育集团和威斯康星大学麦迪逊分校的工程博览会合作,组织“2D铁电体节能未来”教育和推广计划,包括纳米材料研究,高中课堂STEM教育活动开发和专业发展研讨会。技术摘要:二维层状材料具有磁性、强电子相关性、超导电性和铁电性等重要的电子性质,是一种很有前途的量子材料平台。然而,铁电性和其他量子特性的相互作用还没有被探索,因为大多数当前的2D量子材料是非极性的。这种稀缺性阻碍了许多令人兴奋的研究课题,如二维多铁性,偶极哈伯德模型,可重构电荷有序,超导二极管效应。最近发现的“滑动铁电性”从极性堆叠的非极性层表明,它是可能的设计铁电体的绝大多数二维材料与母体非极性化合物。这种铁电性可以通过层间滑动实现转换,其中超低货车德瓦尔斯滑动势垒比任何其他铁电体都小得多。PI的方法是将各种非极性2D磁性单层设计和组装成极性堆叠结构,其中假设自旋和电荷排序对铁电性驱动的堆叠演化敏感。为了充分理解新的量子排序和耦合物理学,研究团队使用内部多模态光学,电学和磁性表征平台,以便在各种空间,时间和能量尺度上同时访问铁电性,磁性和电子相关性。此外,PI将通过静电掺杂和超快光工程来量化和动态控制耦合强度。该研究将促进对二维量子材料中多体相互作用的理解,并为在低功率电子学、超高速自旋电子学和可重构量子模拟中使用已开发的极性和莫尔二维磁体的设备应用铺平道路。该奖项反映了NSF的法定使命,并通过使用基金会的智力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
期刊论文数量(1)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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Jun Xiao其他文献
Recoiled Proton Tagged Knockout Reaction for He-8
He-8 的反冲质子标记敲除反应
- DOI:
- 发表时间:
2012 - 期刊:
- 影响因子:1.7
- 作者:
Xinagqing Li;Jianling Lou;Jun Xiao;Qite Li;Linhui Lv;Kuoang Li;He Wang;Rui Qiao;Haibo You - 通讯作者:
Haibo You
Use of (18)F-FDG PET/CT to locate primary malignancies in patients with hepatic cirrhosis and malignant ascites.
使用 (18)F-FDG PET/CT 定位肝硬化和恶性腹水患者的原发恶性肿瘤。
- DOI:
10.3978/j.issn.1000-9604.2013.09.01 - 发表时间:
2013 - 期刊:
- 影响因子:0
- 作者:
He;Aiming Wang;Dong;Jun Xiao;Yun Ai;Lu Huang;Yongxue Guo;Mu;Juan;Zhi Li;Fu;Yimin Wang - 通讯作者:
Yimin Wang
Creep failure of a solution-annealed 15-15Ti steel exposed to stagnant lead-bismuth eutectic at 550 and 600 ℃
固溶退火 15-15Ti 钢暴露于 550 和 600 ℃ 的停滞铅铋共晶中的蠕变失效
- DOI:
- 发表时间:
2020 - 期刊:
- 影响因子:0
- 作者:
Xing Gong;Zhibin Yang;Yangbin Deng;Jun Xiao;Hao Wang;Zhiyang Yu;Yuan Yin - 通讯作者:
Yuan Yin
Disambiguating named entities with deep supervised learning via crowd labels
通过人群标签通过深度监督学习消除命名实体的歧义
- DOI:
10.1631/fitee.1601835 - 发表时间:
2017-02 - 期刊:
- 影响因子:3
- 作者:
Lekui Zhou;Siliang Tang;Jun Xiao;Fei Wu;Yueting Zhuang - 通讯作者:
Yueting Zhuang
DenXFPN: Pulmonary Pathologies Detection Based on Dense Feature Pyramid Networks
DenXFPN:基于密集特征金字塔网络的肺部病理检测
- DOI:
10.1109/icassp.2019.8683021 - 发表时间:
2019 - 期刊:
- 影响因子:0
- 作者:
Jun Xiao;Yuanxing Zhang;Kaigui Bian;Guopeng Zhou;W. Yan - 通讯作者:
W. Yan
Jun Xiao的其他文献
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