Spin Current Phenomena in Non-Collinear Antiferromagnets:From Fundamental Physics to Device Concepts

非共线反铁磁体中的自旋流现象:从基础物理到器件概念

基本信息

  • 批准号:
    1915849
  • 负责人:
  • 金额:
    $ 36.8万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Standard Grant
  • 财政年份:
    2019
  • 资助国家:
    美国
  • 起止时间:
    2019-07-15 至 2024-01-31
  • 项目状态:
    已结题

项目摘要

Recent years have witnessed a rapidly growing interest in antiferromagnetic spintronics. Up to now, however, most of the research has focused on collinear antiferromagnetic systems. Spin current phenomena in non-collinear antiferromagnetic systems remain largely unexplored. Very recent theoretical work has uncovered new phenomena in non-collinear antiferromagnets Mn3X, where X is Sn, Ga, or Ge. These include an unusual spin Hall effect, a strong spin Nernst effect, and electric manipulation of antiferromagnetic ordering. The heart of this program is the timely experimental elucidation of these phenomena and their use in prototype devices. The studies will largely promote the understanding of spin-related phenomena in non-colinear antiferromagnets and will thereby significantly advance the research field of antiferromagnetic spintronics. From a technological perspective, the proposed research will have significant implications for the future development of magnetic memory, spin-torque nano-oscillators, and spin-wave logic and will therefore have a major impact on future advanced electronic systems. Two undergraduate students and two graduate students per year will participate in film growth, nanofabrication, electrical transport and high-frequency measurements, and data analysis. Outreach to high schools will be accomplished through the Colorado State University 'Little Shop of Physics' and the 'summer Research and Engineering Apprenticeship" Programs.The program consists of three main research thrusts. Thrust I will focus on a rather unusual spin Hall effect in Mn3Sn. A normal spin Hall effect can convert a longitudinal charge current to a transverse spin current whose polarization is orthogonal to the spin flow direction. In stark contrast, the transverse spin current produced by the unusual spin Hall effect has a polarization that is along the spin flow direction. This unusual phenomenon will be demonstrated through two distinct approaches. Further, the effect will be used to induce magnetization switching, drive magnetization precession, and excite spin waves in ferromagnetic thin films with perpendicular anisotropy. None of these effects can be achieved, in principle, with spin currents produced by the normal spin Hall effect, the Rashba effect, or topological surface states. Thrust II will focus on the spin Nernst effect, a process in which one uses a thermal gradient to produce pure spin currents. Recent experiments have revealed this effect in Pt. Very recent theoretical work indicates that the effect can also occur in Mn3X and can be significantly stronger than in Pt. Thrust II will elucidate these predicted strong spin Nernst effect for Mn3X films. It is also planned to use this effect for spin-orbit torque-induced magnetization switching in ferromagnetic films with perpendicular anisotropy. Thrust III will focus on the control of antiferromagnetic ordering in Mn3X. Work is planned to manipulate antiferromagnetic states using damping-like and field-like spin-orbit torques and move domain walls through spin transfer torque. While theory suggests that such ordering control is feasible, this has not yet been demonstrated experimentally.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.
近年来,反铁磁自旋电子学的研究迅速发展。 然而,到目前为止,大部分的研究都集中在共线反铁磁系统。 在非共线反铁磁系统中的自旋电流现象仍然在很大程度上未被探索。 最近的理论工作揭示了非共线反铁磁体Mn3X中的新现象,其中X是Sn,Ga或Ge。 这些包括一个不寻常的自旋霍尔效应,一个强大的自旋能斯特效应,和反铁磁有序的电操纵。 该计划的核心是及时实验阐明这些现象及其在原型设备中的使用。 这些研究将极大地促进人们对非共线反铁磁体中自旋相关现象的理解,从而推动反铁磁自旋电子学的研究。从技术角度来看,拟议的研究将对磁存储器,自旋扭矩纳米振荡器和自旋波逻辑的未来发展产生重大影响,因此将对未来先进的电子系统产生重大影响。 每年有两名本科生和两名研究生将参与薄膜生长,纳米纤维,电传输和高频测量以及数据分析。将通过科罗拉多州立大学的“物理小商店”和“夏季研究和工程学徒”方案向高中进行推广。 推力我将集中在一个相当不寻常的自旋霍尔效应Mn3Sn。 正常的自旋霍尔效应可以将纵向电荷流转换为横向自旋流,其极化与自旋流方向正交。 与此形成鲜明对比的是,由不寻常的自旋霍尔效应产生的横向自旋流具有沿着自旋流方向的极化。 这种不寻常的现象将通过两种不同的方法来证明。 此外,该效应将用于在具有垂直各向异性的铁磁薄膜中诱导磁化翻转、驱动磁化进动和激发自旋波。 原则上,这些效应都不能用正常自旋霍尔效应、拉什巴效应或拓扑表面态产生的自旋电流来实现。 推力II将重点关注自旋能斯特效应,即利用热梯度产生纯自旋流的过程。 最近的实验已经揭示了这种效果在Pt。 最近的理论研究表明,这种效应也可以发生在Mn3X中,并且可以明显强于Pt。 推力II将阐明Mn3X薄膜的这些预测的强自旋能斯特效应。 它也计划使用这种效应的自旋轨道转矩感应磁化翻转铁磁薄膜垂直各向异性。 推力III将专注于Mn3X中反铁磁有序的控制。 工作计划操纵反铁磁状态使用阻尼类和类场自旋轨道扭矩和移动域壁通过自旋转移扭矩。虽然理论表明这种有序控制是可行的,但这还没有得到实验证明。该奖项反映了NSF的法定使命,并被认为值得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来支持。

项目成果

期刊论文数量(16)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Large unidirectional spin Hall and Rashba−Edelstein magnetoresistance in topological insulator/magnetic insulator heterostructures
  • DOI:
    10.1063/5.0073976
  • 发表时间:
    2018-06
  • 期刊:
  • 影响因子:
    15
  • 作者:
    Yang Lv;J. Kally;Tao Liu;P. Quarterman;T. Pillsbury;B. Kirby;A. Grutter;P. Sahu;J. Borchers;Mingzhong Wu;N. Samarth;Jianping Wang
  • 通讯作者:
    Yang Lv;J. Kally;Tao Liu;P. Quarterman;T. Pillsbury;B. Kirby;A. Grutter;P. Sahu;J. Borchers;Mingzhong Wu;N. Samarth;Jianping Wang
Nanometer-Thick Yttrium Iron Garnet Films with Perpendicular Anisotropy and Low Damping
具有垂直各向异性和低阻尼的纳米厚钇铁石榴石薄膜
  • DOI:
    10.1103/physrevapplied.14.014017
  • 发表时间:
    2020-07-07
  • 期刊:
  • 影响因子:
    4.6
  • 作者:
    Ding, Jinjun;Liu, Chuanpu;Wu, Mingzhong
  • 通讯作者:
    Wu, Mingzhong
Ferromagnetic resonances in single-crystal yttrium iron garnet nanofilms fabricated by metal-organic decomposition
金属有机分解制备单晶钇铁石榴石纳米膜的铁磁共振
  • DOI:
    10.1063/5.0067122
  • 发表时间:
    2021
  • 期刊:
  • 影响因子:
    4
  • 作者:
    Wang, Szu-Fan;Chorazewicz, Kayetan;Lamichhane, Suvechhya;Parrott, Ronald A.;Cabrini, Stefano;Fischer, Peter;Kent, Noah;Turner, John H.;Ishibashi, Takayuki;Frohock, Zachary Parker
  • 通讯作者:
    Frohock, Zachary Parker
Quantum Sensing of Spin Fluctuations of Magnetic Insulator Films with Perpendicular Anisotropy
  • DOI:
    10.1103/physrevapplied.15.034031
  • 发表时间:
    2020-09
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Eric Lee-Wong;Jinjun Ding;Xiaoche Wang;Chuanpu Liu;N. McLaughlin;Hailong Wang;Mingzhong Wu;C. Du
  • 通讯作者:
    Eric Lee-Wong;Jinjun Ding;Xiaoche Wang;Chuanpu Liu;N. McLaughlin;Hailong Wang;Mingzhong Wu;C. Du
Electrical, optical, and magnetic properties of amorphous yttrium iron oxide thin films and consequences for non-local resistance measurements
  • DOI:
    10.1063/5.0144371
  • 发表时间:
    2023-06
  • 期刊:
  • 影响因子:
    3.2
  • 作者:
    M. Roos;S. Bleser;L. Hernandez;G. Diederich;M. Siemens;M. Wu;B. Kirby;B. Zink
  • 通讯作者:
    M. Roos;S. Bleser;L. Hernandez;G. Diederich;M. Siemens;M. Wu;B. Kirby;B. Zink
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Mingzhong Wu其他文献

Structural and magnetic properties of nanostructured Ni0.5Zn0.5Fe2O4 films fabricated by thermal spray
热喷涂纳米结构Ni0.5Zn0.5Fe2O4薄膜的结构和磁性能
  • DOI:
  • 发表时间:
    2003
  • 期刊:
  • 影响因子:
    0
  • 作者:
    S. Ge;X. Ma;Tony Zhang;Mingzhong Wu;Heng Zhang;Y. D. Zhang;J. Ings;J. Yacaman
  • 通讯作者:
    J. Yacaman
Cloning and trapping of magnetostatic spin-wave pulses by parametric pumping
通过参数泵浦克隆和捕获静磁自旋波脉冲
  • DOI:
  • 发表时间:
    2007
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Kevin R. Smith;V. Vasyuchka;Mingzhong Wu;G. Melkov;C. Patton
  • 通讯作者:
    C. Patton
Supplemental Materials for “ Photo-Spin-Voltaic Effect ”
“光自旋伏打效应”补充材料
  • DOI:
  • 发表时间:
    2016
  • 期刊:
  • 影响因子:
    0
  • 作者:
    D. Ellsworth;Lei Lu;Jin Lan;Houchen Chang;Peng Li;Zhe Wang;Jun Hu;Bryan Johnson;Yuqi;Bian;Jiang Xiao;R. Wu;Mingzhong Wu
  • 通讯作者:
    Mingzhong Wu
Structure and magnetic properties of NiFe/SiO2 and Co/SiO2 nanocomposites consolidated by detonation compaction
爆炸压实固结NiFe/SiO2和Co/SiO2纳米复合材料的结构和磁性能
  • DOI:
    10.1063/1.1558606
  • 发表时间:
    2003
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Y. D. Zhang;X. Ma;S. Hui;Mingzhong Wu;S. Ge;W. Hines;J. Budnick;B. Cetegen;S. Semenov
  • 通讯作者:
    S. Semenov
Internal quantum efficiency of c-plane InGaN and m-plane InGaN on Si and GaN
Si和GaN上c面InGaN和m面InGaN的内量子效率
  • DOI:
  • 发表时间:
    2009
  • 期刊:
  • 影响因子:
    0
  • 作者:
    X. Ni;J. Lee;Mingzhong Wu;Xing Li;R. Shimada;Ü. Özgür;A. Baski;H. Morkoç;T. Paskova;G. Mulholland;K. Evans
  • 通讯作者:
    K. Evans

Mingzhong Wu的其他文献

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{{ truncateString('Mingzhong Wu', 18)}}的其他基金

Multi-Scale Magnonic Crystals and Fractional Schr?dinger Equation-Governed Dynamics
多尺度磁子晶体和分数阶薛定谔方程控制的动力学
  • 批准号:
    2420266
  • 财政年份:
    2024
  • 资助金额:
    $ 36.8万
  • 项目类别:
    Standard Grant
Spin Current Phenomena in Non-Collinear Antiferromagnets:From Fundamental Physics to Device Concepts
非共线反铁磁体中的自旋流现象:从基础物理到器件概念
  • 批准号:
    2408972
  • 财政年份:
    2023
  • 资助金额:
    $ 36.8万
  • 项目类别:
    Standard Grant
Multi-Scale Magnonic Crystals and Fractional Schr?dinger Equation-Governed Dynamics
多尺度磁子晶体和分数阶薛定谔方程控制的动力学
  • 批准号:
    2002980
  • 财政年份:
    2020
  • 资助金额:
    $ 36.8万
  • 项目类别:
    Standard Grant
Spin Waves in Disordered Potentials: Interplay between Disorder, Nonlinearity, and Incoherence
无序势中的自旋波:无序、非线性和不相干之间的相互作用
  • 批准号:
    1407962
  • 财政年份:
    2014
  • 资助金额:
    $ 36.8万
  • 项目类别:
    Continuing Grant
Spintronics with Yttrium Iron Garnets - From Fundamental Physics to Device Concepts
使用钇铁石榴石的自旋电子学 - 从基础物理到设备概念
  • 批准号:
    1231598
  • 财政年份:
    2012
  • 资助金额:
    $ 36.8万
  • 项目类别:
    Standard Grant
Nonlinear Spin Waves in Magnetic Films: New Concepts and Applications
磁性薄膜中的非线性自旋波:新概念和应用
  • 批准号:
    0906489
  • 财政年份:
    2009
  • 资助金额:
    $ 36.8万
  • 项目类别:
    Continuing Grant
Novel Magnetic Nano Films and Devices for Millimeter Wave Communications
用于毫米波通信的新型磁性纳米薄膜和器件
  • 批准号:
    0725386
  • 财政年份:
    2007
  • 资助金额:
    $ 36.8万
  • 项目类别:
    Standard Grant

相似海外基金

Spin Current Phenomena in Non-Collinear Antiferromagnets:From Fundamental Physics to Device Concepts
非共线反铁磁体中的自旋流现象:从基础物理到器件概念
  • 批准号:
    2408972
  • 财政年份:
    2023
  • 资助金额:
    $ 36.8万
  • 项目类别:
    Standard Grant
Theory of spin current phenomena utilizing the superconducting vortex as a real-space topological defect
利用超导涡旋作为实空间拓扑缺陷的自旋流现象理论
  • 批准号:
    22H01941
  • 财政年份:
    2022
  • 资助金额:
    $ 36.8万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Observation of nonreciprocal charge transport phenomena caused by current-induced breaking of the time-reversal and space-inversion symmetries
观察电流引起的时间反转和空间反转对称性破缺引起的不可逆电荷传输现象
  • 批准号:
    20K14408
  • 财政年份:
    2020
  • 资助金额:
    $ 36.8万
  • 项目类别:
    Grant-in-Aid for Early-Career Scientists
Novel fermiology by current-induced phenomena
电流感应现象的新型费米学
  • 批准号:
    20K20889
  • 财政年份:
    2020
  • 资助金额:
    $ 36.8万
  • 项目类别:
    Grant-in-Aid for Challenging Research (Exploratory)
Elucidation of physical properties of spin current thermoelectric phenomena using magnetic insulator thin films fabricated by wet process
使用湿法制造的磁绝缘体薄膜阐明自旋流热电现象的物理性质
  • 批准号:
    20K05255
  • 财政年份:
    2020
  • 资助金额:
    $ 36.8万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Analysis of collapse phenomena in heliotron plasma based on paradigm shift including net current
基于范式转换(包括净电流)的日光管等离子体塌陷现象分析
  • 批准号:
    20K03909
  • 财政年份:
    2020
  • 资助金额:
    $ 36.8万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Study on the flow elasticity phenomena of multiple vertically placed large diameter bore pipes under the current.
多根垂直放置大口径管道水流下流动弹性现象研究
  • 批准号:
    17H03500
  • 财政年份:
    2017
  • 资助金额:
    $ 36.8万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Cycles of triply coupled mechanical contact, current, and thermal conduction phenomena during resistance spot welding
电阻点焊过程中三重耦合机械接触、电流和热传导现象的循环
  • 批准号:
    16K05043
  • 财政年份:
    2016
  • 资助金额:
    $ 36.8万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Current standerd devices by nanomechanical Coulomb blockade shuttle phenomena
当前标准器件采用纳米力学库仑封锁穿梭现象
  • 批准号:
    15K17483
  • 财政年份:
    2015
  • 资助金额:
    $ 36.8万
  • 项目类别:
    Grant-in-Aid for Young Scientists (B)
Research on the current effects on the high temperature phenomena of oxide ceramics and its applications
电流对氧化物陶瓷高温现象的影响及其应用研究
  • 批准号:
    15K06515
  • 财政年份:
    2015
  • 资助金额:
    $ 36.8万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
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