Studies of Artificial Spin Ice at Brookhaven and Lawrence Berkeley National Laboratories
布鲁克海文和劳伦斯伯克利国家实验室的人造旋转冰研究
基本信息
- 批准号:EP/J021482/1
- 负责人:
- 金额:$ 5.9万
- 依托单位:
- 依托单位国家:英国
- 项目类别:Research Grant
- 财政年份:2012
- 资助国家:英国
- 起止时间:2012 至 无数据
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Artificial spin ices are arrays of patterned nanomagnets. They make use of nanotechnology to reproduce many of the features found in the 'naturally-occurring' spin ices--pyrochlore crystals, in which rare earth moments are arranged meeting in groups of four at tetrahedral vertices so as to enforce geometric frustration--in a two-dimensional analog. In these artificial systems, all parameters can be specified by design and the exact configuration of the moments can be inspected using high resolution magnetic microscopy. As a result they offer exciting possibilities in studying statistical mechanical models in and out of thermal equilibrium, visualising phenomena such as fractionalised monopole excitations at room temperature in a way that is impossible in the pyrochlore systems, and exploring novel applications, such as using the 'magnetricity' of these monopoles to perform neuromorphic computing. Fabricating and studying these systems requires state-of-the-art facilities. Here we seek travel support to allow us to access three unique facilities at two US National Laboratories: the Center for Functional Nanomaterials (CFN) and the National Synchrotron Light Source (NSLS) at Brookhaven National Laboratory (BNL) and the Advanced Light Source (ALS) at Lawrence Berkeley National Laboratory (LBNL), at all of which we have won facility time to study artificial spin ices through competitive peer review. We will fabricate samples at the extreme nanoscale at the CFN, and study them in reciprocal (NSLS) and real (ALS) space at the two synchrotron facilities.
人造旋转冰是有图案的纳米磁体阵列。他们利用纳米技术以二维模拟的方式再现了“天然存在”的自旋冰(烧绿石晶体)中发现的许多特征,其中稀土矩在四面体顶点处以四个为一组排列,以增强几何挫败感。在这些人工系统中,所有参数都可以通过设计指定,并且可以使用高分辨率磁显微镜检查力矩的精确配置。因此,它们为研究热平衡内外的统计力学模型、以烧绿石系统中不可能的方式可视化诸如室温下的分段单极子激发等现象以及探索新颖的应用(例如利用这些单极子的“磁力”来执行神经形态计算)提供了令人兴奋的可能性。制造和研究这些系统需要最先进的设施。在这里,我们寻求差旅支持,以便能够使用两个美国国家实验室的三个独特设施:布鲁克海文国家实验室 (BNL) 的功能纳米材料中心 (CFN) 和国家同步加速器光源 (NSLS) 以及劳伦斯伯克利国家实验室 (LBNL) 的先进光源 (ALS),在所有这些设施中,我们通过竞争对手赢得了研究人造自旋冰的设施时间 审查。我们将在 CFN 制造极端纳米尺度的样品,并在两个同步加速器设施的倒易 (NSLS) 和实 (ALS) 空间中研究它们。
项目成果
期刊论文数量(4)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Linear field demagnetization of artificial magnetic square ice
人造磁方冰的线性场退磁
- DOI:10.3389/fphy.2013.00028
- 发表时间:2013
- 期刊:
- 影响因子:3.1
- 作者:Morgan J
- 通讯作者:Morgan J
Vogel-Fulcher-Tammann freezing of a thermally fluctuating artificial spin ice probed by x-ray photon correlation spectroscopy
- DOI:10.1103/physrevb.95.104422
- 发表时间:2017-03-16
- 期刊:
- 影响因子:3.7
- 作者:Morley, S. A.;Venero, D. Alba;Marrows, C. H.
- 通讯作者:Marrows, C. H.
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Christopher Marrows其他文献
Christopher Marrows的其他文献
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{{ truncateString('Christopher Marrows', 18)}}的其他基金
Quantum spin Hall effect spintronics
量子自旋霍尔效应自旋电子学
- 批准号:
EP/T034343/1 - 财政年份:2021
- 资助金额:
$ 5.9万 - 项目类别:
Research Grant
Synthetic Antiferromagnetic Skyrmions
合成反铁磁斯格明子
- 批准号:
EP/T006803/1 - 财政年份:2020
- 资助金额:
$ 5.9万 - 项目类别:
Research Grant
Current-driven domain wall motion and magnetomemristance in FeRh-based nanostructures
FeRh 基纳米结构中电流驱动的畴壁运动和磁阻
- 批准号:
EP/M018504/1 - 财政年份:2015
- 资助金额:
$ 5.9万 - 项目类别:
Research Grant
Artificial Spin Ice: Designer Matter Far From Equilibrium
人造旋转冰:设计问题远离平衡
- 批准号:
EP/L00285X/1 - 财政年份:2014
- 资助金额:
$ 5.9万 - 项目类别:
Research Grant
UK-Japanese Collaboration on Current-Driven Domain Wall Dynamics
英日在电流驱动畴壁动力学方面的合作
- 批准号:
EP/J000337/1 - 财政年份:2011
- 资助金额:
$ 5.9万 - 项目类别:
Research Grant
Spin-Torque and Spin Polarisation in Epitaxial Magnetic Silicides
外延磁性硅化物中的自旋扭矩和自旋极化
- 批准号:
EP/J007110/1 - 财政年份:2011
- 资助金额:
$ 5.9万 - 项目类别:
Research Grant
Spin-Polarised Tunnelling in Magnetic Nanostructures: A UK-China Collaboration
磁性纳米结构中的自旋极化隧道:中英合作
- 批准号:
EP/H001875/1 - 财政年份:2010
- 资助金额:
$ 5.9万 - 项目类别:
Research Grant
Current-Driven Domain Wall Motion in Multilayer Nanowires
多层纳米线中电流驱动的畴壁运动
- 批准号:
EP/I011668/1 - 财政年份:2010
- 资助金额:
$ 5.9万 - 项目类别:
Research Grant
MATERIALS WORLD NETWORK The Magnetostructural Response in Heterostructured Systems: a US - UK Collaboration
MATERIALS WORLD NETWORK 异质结构系统中的磁结构响应:美国 - 英国合作
- 批准号:
EP/G065640/1 - 财政年份:2009
- 资助金额:
$ 5.9万 - 项目类别:
Research Grant
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