Discovery and Control of Skyrmions in 2D van der Waals Magnets
二维范德华磁体中斯格明子的发现和控制
基本信息
- 批准号:2206987
- 负责人:
- 金额:$ 68.89万
- 依托单位:
- 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:2022-06-01 至 2025-05-31
- 项目状态:未结题
- 来源:
- 关键词:
项目摘要
Non-technical AbstractEngineering magnetic materials has led to ground-breaking discoveries in data storage (hard-drives, records), sound engineering (electric guitars, speakers), transportation (bullet trains, suspensions), and many others. This federally funded project aims to take traditional magnetism into nanometric dimensions to realize atomic-scale magnetic patterns resembling a hedgehog’s spikes, called skyrmions. Skyrmion formation offers new functionalities in logic and information storage that are not possible in traditional magnetic materials. Through this funding, the team aims to realize skyrmions in atomically thin materials, understand their magnetic behavior, and manipulate their properties. While doing so, the project aims to discover novel classes of magnetic materials and technologies that will increase the U.S military and economic competitiveness at a global scale and open ways to realize high-performance and next-generation applications towards quantum memory, logic, and communication devices. The immediate societal impacts of the project will manifest through high-school, undergraduate and graduate student training in an active research environment as well as K-12 outreach efforts to introduce students to STEM fields and materials science. Technical AbstractMagnetic skyrmions are topologically protected nanometric size spin textures with exciting quantum properties towards information and neuro-inspired technologies. To date, the experimentally known skyrmionic platforms are restricted to bulk crystals and metallic multilayer films. The ultimate goal of this project is to experimentally stabilize skyrmions in two-dimensional (2D) and van der Waals layered materials and investigate emergent properties arising from reduced dimensions. The project will use transition metal dihalide monolayers and their moiré superlattices as a platform and it will combine theoretical and experimental studies to explore three different mechanisms for skyrmion realization: 1) inversion symmetry breaking in ferromagnetic monolayers, 2) tunable electric fields in ferromagnetic monolayers, 3) twistronics in homobilayers. The project will utilize magneto-optical Kerr, Lorentz microscopy, and diamond-NV atomic force microscope techniques to experimentally understand their magnetic properties. Density functional and Monte-Carlo studies will offer theoretical insights for complete understanding of these 2D skyrmionic platforms. The results from this project will fill a large fundamental knowledge gap in the field by establishing what hallmark characteristics are important for skyrmion formation in the monolayer and few-layer limit. Societal impacts of the project will manifest through new applications towards memory, logic, and communication devices and through cutting edge K-12 and general public outreach activities.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.
工程磁性材料已经在数据存储(硬盘驱动器、唱片)、声音工程(电吉他、扬声器)、交通运输(子弹头列车、悬挂系统)和许多其他领域带来了突破性的发现。这个由联邦政府资助的项目旨在将传统磁学带入纳米尺度,以实现原子尺度的磁性模式,类似于刺猬的尖刺,称为skyrmions。Skyrmion的形成提供了传统磁性材料无法实现的逻辑和信息存储的新功能。通过这笔资金,该团队的目标是在原子薄的材料中实现skyrmions,了解它们的磁性行为,并操纵它们的性质。在此过程中,该项目旨在发现新型磁性材料和技术,这将提高美国在全球范围内的军事和经济竞争力,并为实现高性能和下一代应用于量子存储器,逻辑和通信设备开辟途径。该项目的直接社会影响将体现在积极的研究环境中对高中、本科生和研究生的培训,以及向学生介绍STEM领域和材料科学的K-12外展努力。技术摘要:磁skyrmions是拓扑保护的纳米尺寸自旋织构,具有令人兴奋的量子特性,面向信息和神经启发技术。迄今为止,实验上已知的skyronic平台仅限于块状晶体和金属多层薄膜。该项目的最终目标是通过实验稳定二维(2D)和范德华层状材料中的skyrmions,并研究从降维中产生的紧急特性。该项目将以过渡金属二卤化物单层及其摩尔超晶格为平台,结合理论和实验研究,探索三种不同的skyrion实现机制:1)铁磁单层的反演对称性破缺,2)铁磁单层的可调谐电场,3)均匀层的双扭电子学。该项目将利用磁光克尔显微镜、洛伦兹显微镜和金刚石- nv原子力显微镜技术,通过实验了解它们的磁性。密度泛函和蒙特卡罗研究将为完全理解这些二维天空平台提供理论见解。该项目的研究结果将填补该领域的巨大基础知识空白,确定哪些特征对单层和少层极限中skyrmion的形成至关重要。该项目的社会影响将通过内存、逻辑和通信设备的新应用以及尖端的K-12和一般公众宣传活动来体现。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
期刊论文数量(9)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Tunable magnetic and optical properties of transition metal dihalides by cation alloying
- DOI:10.1103/physrevmaterials.6.084003
- 发表时间:2022-08
- 期刊:
- 影响因子:3.4
- 作者:Mark Blei;Jesse Kapeghian;Rounak Banerjee;P. Kolari;Blake Povilus;Y. Attarde;A. Botana;S. Tongay
- 通讯作者:Mark Blei;Jesse Kapeghian;Rounak Banerjee;P. Kolari;Blake Povilus;Y. Attarde;A. Botana;S. Tongay
Theory of (s+id) pairing in mixed-valent correlated metals
- DOI:10.1103/physrevb.102.214509
- 发表时间:2020-07
- 期刊:
- 影响因子:3.7
- 作者:E. Nica;O. Erten
- 通讯作者:E. Nica;O. Erten
Damage detection through Förster Resonance Energy Transfer in mechanoresponsive polymer nanocomposites
通过力响应聚合物纳米复合材料中的福斯特共振能量转移进行损伤检测
- DOI:10.1016/j.polymer.2020.123275
- 发表时间:2021
- 期刊:
- 影响因子:4.6
- 作者:Wang, Meng;Schwindt, Alexandra;Wu, Kedi;Qin, Ying;Kwan, Allison;Tongay, Sefaattin;Green, Matthew D.
- 通讯作者:Green, Matthew D.
Skyrmions in twisted van der Waals magnets
- DOI:10.1103/physrevb.103.l140406
- 发表时间:2021-04-13
- 期刊:
- 影响因子:3.7
- 作者:Akram, Muhammad;Erten, Onur
- 通讯作者:Erten, Onur
Monolayer Excitonic Semiconductors Integrated with Au Quasi-Periodic Nanoterrace Morphology on Fused Silica Substrates for Light-Emitting Devices
用于发光器件的熔融石英衬底上与金准周期纳米晶形态集成的单层激子半导体
- DOI:10.1021/acsanm.0c02386
- 发表时间:2021-01-22
- 期刊:
- 影响因子:5.9
- 作者:Chen, Yuheng;Li, Han;Liu, Ying
- 通讯作者:Liu, Ying
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Sefaattin Tongay其他文献
Spin transport of a doped Mott insulator in moiré heterostructures
莫尔超晶格中掺杂莫特绝缘体的自旋输运
- DOI:
10.1038/s41467-024-54633-z - 发表时间:
2024-11-26 - 期刊:
- 影响因子:15.700
- 作者:
Emma C. Regan;Zheyu Lu;Danqing Wang;Yang Zhang;Trithep Devakul;Jacob H. Nie;Zuocheng Zhang;Wenyu Zhao;Kenji Watanabe;Takashi Taniguchi;Sefaattin Tongay;Alex Zettl;Liang Fu;Feng Wang - 通讯作者:
Feng Wang
Monolayer Excitonic Semiconductors Integrated with Au Quasi-Periodic Nanoterrace Morphology on Fused Silica Substrates for Light-Emitting Devices
- DOI:
https://dx.doi.org/10.1021/acsanm.0c02386 - 发表时间:
- 期刊:
- 影响因子:
- 作者:
Yuheng Chen;Han Li;Mark Blei;Maoqi Cai;Haofeng Zang;Yonghua Lu;Sefaattin Tongay;Ying Liu - 通讯作者:
Ying Liu
Stable p- and n- type doping of few-layer grapheme/graphite
少层石墨烯/石墨的稳定 p 型和 n 型掺杂
- DOI:
- 发表时间:
2013 - 期刊:
- 影响因子:10.9
- 作者:
Xiuqing Meng;Sefaattin Tongay;Jun Kang;Zhanghui Chen;Fengmin Wu;Shu-Shen Li;Jian-Bai Xia;Jingbo Li;Junqiao Wu - 通讯作者:
Junqiao Wu
High-Performance Few-layer Mo-doped ReSe2 Nanosheet Photodetectors
高性能少层钼掺杂硒化铼纳米片光电探测器
- DOI:
10.1038/srep05442 - 发表时间:
2014-06-25 - 期刊:
- 影响因子:3.900
- 作者:
Shengxue Yang;Sefaattin Tongay;Qu Yue;Yongtao Li;Bo Li;Fangyuan Lu - 通讯作者:
Fangyuan Lu
Eco-friendly layered carbide synthesis from renewable precursors for energy storage applications
从可再生前驱体合成环保型层状碳化物用于储能应用
- DOI:
10.1016/j.isci.2025.112692 - 发表时间:
2025-06-20 - 期刊:
- 影响因子:4.100
- 作者:
William Coley;Amir-Ali Akhavi;Pedro Pena;Ruoxu Shang;Yi Ma;Andreas August-Hernandez;Mohammed Sayyad;Sefaattin Tongay;Mustafa Kurban;Cengiz S. Ozkan;Mihrimah Ozkan - 通讯作者:
Mihrimah Ozkan
Sefaattin Tongay的其他文献
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{{ truncateString('Sefaattin Tongay', 18)}}的其他基金
Spin-orbitronic devices based on 2D Rashba Janus crystals as active materials
基于二维 Rashba Janus 晶体作为活性材料的自旋轨道电子器件
- 批准号:
2052527 - 财政年份:2021
- 资助金额:
$ 68.89万 - 项目类别:
Standard Grant
GOALI: Large Scale Synthesis and Manufacturing of Atomically Thin Polar Materials for Quantum Applications
GOALI:用于量子应用的原子薄极性材料的大规模合成和制造
- 批准号:
2129412 - 财政年份:2021
- 资助金额:
$ 68.89万 - 项目类别:
Continuing Grant
Bosonic Condensation and Emergent Phenomena in 2D Janus layers and Moiré Lattices
二维 Janus 层和莫尔晶格中的玻色子凝聚和涌现现象
- 批准号:
2111812 - 财政年份:2021
- 资助金额:
$ 68.89万 - 项目类别:
Standard Grant
Wafer-Scale Manufacturing of Two-Dimensional Anisotropic Nanomaterials by Chemical Vapor Deposition
化学气相沉积法晶圆级制造二维各向异性纳米材料
- 批准号:
1933214 - 财政年份:2019
- 资助金额:
$ 68.89万 - 项目类别:
Standard Grant
Discovery and Fundamental Investigation of Emergent Phenomena in Novel 2D Magnets
新型二维磁体中涌现现象的发现和基础研究
- 批准号:
1904716 - 财政年份:2019
- 资助金额:
$ 68.89万 - 项目类别:
Continuing Grant
EAGER: The Fundamentals of Exotic Exciton Complexes in 2D Janus Semiconductors
EAGER:二维 Janus 半导体中奇异激子复合物的基础知识
- 批准号:
1955889 - 财政年份:2019
- 资助金额:
$ 68.89万 - 项目类别:
Standard Grant
EAGER: Enabling Quantum Leap: Room temperature Quantum Logic operations Enabled by Quantum Emitter Arrays in 2D artificial Superlattices
EAGER:实现量子飞跃:二维人造超晶格中的量子发射器阵列实现室温量子逻辑运算
- 批准号:
1838443 - 财政年份:2018
- 资助金额:
$ 68.89万 - 项目类别:
Standard Grant
Manufacturing of Two-Dimensional Metal-Organic Framework Nanosheets by Two-Phase Solution Method
两相溶液法制备二维金属有机框架纳米片
- 批准号:
1825594 - 财政年份:2018
- 资助金额:
$ 68.89万 - 项目类别:
Standard Grant
Nanomanufacturing of 3D Networks of 2D Materials for High Materials Performance
2D 材料 3D 网络纳米制造,实现高材料性能
- 批准号:
1561839 - 财政年份:2016
- 资助金额:
$ 68.89万 - 项目类别:
Standard Grant
CAREER: Point Defects in Two-dimensional Material Systems: Fundamentals and New Perspectives
职业:二维材料系统中的点缺陷:基础知识和新视角
- 批准号:
1552220 - 财政年份:2016
- 资助金额:
$ 68.89万 - 项目类别:
Continuing Grant
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