Collaborative Research: Ferrimagnetic Insulator Based Bilayers for Interface-Driven Topological Spin Textures
合作研究:基于亚铁磁绝缘体的双层界面驱动拓扑自旋纹理
基本信息
- 批准号:2225645
- 负责人:
- 金额:$ 31.87万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:2022
- 资助国家:美国
- 起止时间:2022-09-01 至 2025-08-31
- 项目状态:未结题
- 来源:
- 关键词:
项目摘要
NON-TECHNICAL DESCRIPTIONData is everywhere. It is generated at an accelerating pace by the devices we carry with us, embedded electronics in our homes and cars, and increasingly powerful computers and servers. This requires an enormous amount of energy for data creation, storage, and transmission. Innovations in data storage and processing are needed, and conventional electronics based on semiconductors are not equal to the task. Spintronics combines electronics with spin, an intrinsic property of elementary particles. The goal of this project is to develop a new material platform for spintronics, allowing new types of devices for energy-efficient memory and computing. Investigators will focus on heterostructures consisting of ultrathin magnetic films with an adjacent metallic layer. Investigators will grow high-quality bilayer films, characterize interactions at the atomically sharp interfaces, and optimize their properties for use in applications. This fundamental research could lead to portable, nonvolatile memory devices that are smaller in size, higher in density, and more energy efficient than those currently available. Undergraduate and graduate students will be trained to work in the critical science and technology fields to support an innovation-driven economy. The PIs will jointly teach a course on spintronics as well as expand a course on “Being Human in Physics” to both of their institutions.TECHNICAL DESCRIPTIONMagnetic skyrmions are a promising candidate for future ultrahigh-density, high energy efficiency magnetic memory devices. They exhibit robust topological stability, have nanoscale sizes, and a low electrical current is required to write, erase, and transport them. In order for skyrmion-based next-generation magnetic memory technology to become a reality, the fundamental interactions at the interfaces of magnetic bilayers need to be thoroughly understood, including exchange coupling, Dzyaloshinskii-Moriya interaction, and magnetic anisotropy. These interactions need to be judiciously tuned to host nanometer-sized skyrmions at room temperature. To achieve this goal, the PIs pursue a collaborative research project on ultrathin magnetic garnet-based bilayers as energy-efficient spintronic materials. The team integrates epitaxial film growth with advanced spectroscopy methods and aims to achieve the following goals: (i) establishing the structure-property correlation via a rapid feedback loop of growth and spectroscopy characterization; (ii) optimizing bilayers for skyrmions with desirable characteristics and chiral domain wall motions with record-breaking velocity; and (iii) exploring a new class of bilayers consisting of an epitaxial ferrimagnetic insulator film and a van der Waals overlayer.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.
数据无处不在。它是由我们随身携带的设备、家庭和汽车中的嵌入式电子产品以及功能日益强大的计算机和服务器加速产生的。这需要大量的能量来创建、存储和传输数据。需要在数据存储和处理方面进行创新,而基于半导体的传统电子设备无法胜任这一任务。自旋电子学将电子学与自旋结合起来,自旋是基本粒子的固有属性。该项目的目标是为自旋电子学开发一种新的材料平台,允许新型设备用于节能存储和计算。研究人员将集中在异质结构组成的磁性薄膜与相邻的金属层。研究人员将生长高质量的双层膜,表征原子级尖锐界面的相互作用,并优化其应用性能。这项基础研究可能会导致便携式非易失性存储器设备的尺寸更小,密度更高,比目前可用的更节能。本科生和研究生将接受培训,在关键的科学和技术领域工作,以支持创新驱动的经济。两所研究所将共同教授一门自旋电子学课程,并在两所院校开设一门“在物理学中做人”课程。技术说明磁skyrmions是未来超高密度、高能效磁存储器件的一个有希望的候选者。它们表现出强大的拓扑稳定性,具有纳米尺寸,并且需要低电流来写入,擦除和传输它们。为了使基于skyrmion的下一代磁存储技术成为现实,需要彻底了解磁性双层界面处的基本相互作用,包括交换耦合,Dzyaloshinskiii-Moriya相互作用和磁各向异性。这些相互作用需要明智地调整,以在室温下容纳纳米大小的skyrmions。为了实现这一目标,PI进行了一项关于磁性石榴石双层作为节能自旋电子材料的合作研究项目。该团队将外延薄膜生长与先进的光谱学方法相结合,旨在实现以下目标:(i)通过生长和光谱表征的快速反馈回路建立结构-性能相关性;(ii)优化具有理想特性的skyrmions和创纪录速度的手性畴壁运动的双层膜;以及(iii)探索由外延亚铁磁绝缘膜和货车德瓦尔斯覆盖层组成的新型双层。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。
项目成果
期刊论文数量(0)
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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Xiaoqin Li其他文献
Design of multimedia broadcasting terminal for college English teaching under internet environment
- DOI:
10.3233/jifs-179170 - 发表时间:
2019 - 期刊:
- 影响因子:0
- 作者:
Xiaoqin Li - 通讯作者:
Xiaoqin Li
Systematic design of a cross-polarized dermoscope for visual inspection and digital imaging
用于视觉检查和数字成像的交叉偏振皮肤镜的系统设计
- DOI:
10.1109/mim.2011.6086897 - 发表时间:
2011-12 - 期刊:
- 影响因子:2.1
- 作者:
Qiushi Ren;Xin Xu;Xiaoqin Li;Peng Xi;Hening Wang - 通讯作者:
Hening Wang
Goaf water storage and utilization in arid regions of northwest China: A case study of Shennan coal mine district
西北干旱区采空区蓄水与利用——以深南煤矿区为例
- DOI:
10.1016/j.jclepro.2018.08.123 - 发表时间:
2018-11 - 期刊:
- 影响因子:11.1
- 作者:
Qiqing Wang;Wenping Li;Tao Li;Xiaoqin Li;Shiliang Liu - 通讯作者:
Shiliang Liu
Protein structure preference, tRNA copy number, and mRNA stem/loop content
蛋白质结构偏好、tRNA 拷贝数和 mRNA 茎/环含量
- DOI:
10.1002/bip.20094 - 发表时间:
2004 - 期刊:
- 影响因子:2.9
- 作者:
L. Luo;Mengwen Jia;Xiaoqin Li - 通讯作者:
Xiaoqin Li
Dietary
Adonis. aestivalis
extract improved the flesh pigmentation, antioxidative status and shelf‐life of rainbow trout (
Oncorhynchus mykiss
)
膳食阿多尼斯提取物改善了虹鳟鱼(Oncorhynchus mykiss)的果肉色素沉着、抗氧化状态和保质期。
- DOI:
10.1111/anu.13144 - 发表时间:
2020 - 期刊:
- 影响因子:0
- 作者:
Chunyan Zhang;Wenxiang Yao;Dengxin Wen;Xiaoqin Li;Shilin Wu;X. Leng - 通讯作者:
X. Leng
Xiaoqin Li的其他文献
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{{ truncateString('Xiaoqin Li', 18)}}的其他基金
Enhancing Quantum Emissions from Atomically Thin Semiconductors with Metasurfaces
利用超表面增强原子薄半导体的量子发射
- 批准号:
2130552 - 财政年份:2021
- 资助金额:
$ 31.87万 - 项目类别:
Standard Grant
MRI: Development of A Magneto-Optical Spectroscopy System for Investigation of Spintronic and Quantum Materials
MRI:开发用于研究自旋电子和量子材料的磁光光谱系统
- 批准号:
2019130 - 财政年份:2020
- 资助金额:
$ 31.87万 - 项目类别:
Standard Grant
Coherent Quantum Dynamics of Indirect Excitons and Valley Pseudospins in Atomically Thin Semiconductor Heterostructures
原子薄半导体异质结构中间接激子和谷赝自旋的相干量子动力学
- 批准号:
1808042 - 财政年份:2018
- 资助金额:
$ 31.87万 - 项目类别:
Standard Grant
Workshop: Current Challenges and Future Opportunities in Electronic and Photonic Materials
研讨会:电子和光子材料当前的挑战和未来的机遇
- 批准号:
1748163 - 财政年份:2017
- 资助金额:
$ 31.87万 - 项目类别:
Standard Grant
EFRI 2-DARE: From Atoms to Devices: Pathways to Atomic Layer Optoelectronics via Multi-Scale Imaging and Spectroscopy
EFRI 2-DARE:从原子到设备:通过多尺度成像和光谱学通往原子层光电子学的途径
- 批准号:
1542747 - 财政年份:2015
- 资助金额:
$ 31.87万 - 项目类别:
Standard Grant
Tailoring Light-Matter Interaction in Plasmonic Nanostructures based on Epitaxial Metallic Films: From Classical to Quantum Regime
基于外延金属薄膜的等离激元纳米结构中的光与物质相互作用的定制:从经典到量子体系
- 批准号:
1306878 - 财政年份:2013
- 资助金额:
$ 31.87万 - 项目类别:
Continuing Grant
CAREER: Quantum Dynamics in Nanostructures by Design
职业:纳米结构中的量子动力学设计
- 批准号:
0747822 - 财政年份:2008
- 资助金额:
$ 31.87万 - 项目类别:
Continuing Grant
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