CAREER: Spin Dependent Phenomena in Semiconductors

职业:半导体中的自旋相关现象

基本信息

  • 批准号:
    0547875
  • 负责人:
  • 金额:
    $ 40万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Continuing Grant
  • 财政年份:
    2006
  • 资助国家:
    美国
  • 起止时间:
    2006-07-01 至 2011-06-30
  • 项目状态:
    已结题

项目摘要

TECHNICAL SUMMARY:This CAREER award supports theoretical research, and an education, and outreach program that focuses on the study of spin-dependent phenomena in semiconductors. In the research component:1. The PI plans to develop a theory of spin transport and accumulation in spin-orbit coupled systems where spin manipulation is possible solely by electrical means. This study, which encompasses the spin-Hall effect, will address key issues such as disorder scattering, generalized drift-diffusion equations, and interaction effects. The PI will use several approaches that combine analytical and computational techniques at different length scales.2. The PI aims to obtain a systematic theory of the anomalous Hall effect and anomalous transport that describes on an equal footing both extrinsic and intrinsic mechanisms responsible for the effect. This study will also merge different approaches to resolve the contradictory results obtained through microscopic and phenomenological approaches.3. The PI will work to extend the theory of magneto-transport and magneto-optics in diluted magnetic semiconductors to include nanostructures and hybrid systems and explore new phenomena such as tunneling anisotropic magneto-resistance.The educational and outreach component has four foci: (1) The PI will incorporate, further develop, and assess several Paradigms of Physics module courses in coordination with their developers at Oregon State University. The Paradigms of Physics program consists of several short module-like-courses, taught during the junior year, that focus on key paradigms that cut across several branches of physics. This allows students to better connect many interwoven ideas in different subfields. (2) The PI will involve undergraduates in the groups research projects. (3) The PI will enhance graduate education through student participation in international collaborative research, including visits to international experimental groups. (4) The PI plans to develop outreach activities to increase public awareness of spintronics and its broad impact in society, including public lectures and the development of a website describing spintronics research at TAMU at a general level. In addition a website dedicated to the specialized diluted magnetic semiconductor research community will be further developed. NON-TECHNICAL SUMMARY:This CAREER award supports fundamental theoretical research, and an education, and outreach program that focuses on the study of phenomena in semiconductors involving the spin associated with electrons. In particular the PI will focus on fundamental questions aiming to elucidate how electric fields can drive the transport of spin. The PI aims to elucidate current controversies surrounding the interpretation of experiments in which an electric field is observed to drive a spin current in a direction perpendicular to the electric field. This phenomenon offers the potential to manipulate electron spin with an electric field and opens possibilities for new electronic devices, spintronic devices, in which their operation depends not only on the electron charge, as in an electronic device, but also on its spin. The PI will also study other phenomena involving the transport of electron spin and charge in magnetic materials and in diluted magnetic semiconductors. Diluted magnetic semiconductors are semiconductors that are doped so that they contain magnetic impurities. They combine the properties of magnets and semiconductors and are promising materials for spintronic devices. The fundamental research is interesting and important in its own right, but also contributes to the intellectual foundations of the emerging field of spintronics. The educational and outreach component has four foci: (1) The PI will incorporate, further develop, and assess several Paradigms of Physics module courses in coordination with their developers at Oregon State University. The Paradigms of Physics program consists of several short module-like-courses, taught during the junior year, that focus on key paradigms that cut across several branches of physics. This allows students to better connect many interwoven ideas in different subfields. (2) The PI will involve undergraduates in the groups research projects. (3) The PI will enhance graduate education through student participation in international collaborative research, including visits to international experimental groups. (4) The PI plans to develop outreach activities to increase public awareness of spintronics and its broad impact in society, including public lectures and the development of a website describing spintronics research at TAMU at a general level. In addition a website dedicated to the specialized diluted magnetic semiconductor research community will be further developed.
技术摘要:该职业奖支持理论研究,教育和推广计划,重点是研究半导体中的自旋相关现象。 在研究部分:1。PI计划在自旋轨道耦合系统中发展自旋传输和积累的理论,其中自旋操纵仅通过电气手段是可能的。这项研究,其中包括自旋霍尔效应,将解决关键问题,如无序散射,广义漂移扩散方程,和相互作用的影响。PI将使用几种方法,结合联合收割机分析和计算技术在不同的长度尺度。PI的目的是获得一个系统的理论的异常霍尔效应和异常运输,描述了在平等的基础上,外在和内在的机制负责的效果。本研究也将融合不同的方法来解决通过微观和现象学方法获得的矛盾结果。该项目将致力于扩展稀磁半导体中的磁输运和磁光理论,以包括纳米结构和混合系统,并探索新的现象,如隧穿各向异性磁阻。教育和推广部分有四个重点:(1)该项目将与俄勒冈州州立大学的开发人员合作,整合,进一步开发和评估几个物理模块课程的范例。物理程序的范式包括几个短期模块类课程,在大三期间教授,重点是跨越物理学的几个分支的关键范式。这使学生能够更好地连接不同子领域的许多交织的想法。(2)PI将让本科生参与小组的研究项目。(3)PI将通过学生参与国际合作研究来加强研究生教育,包括访问国际实验组。(4)PI计划开展外联活动,以提高公众对自旋电子学及其在社会中的广泛影响的认识,包括公开讲座和开发一个网站,介绍TAMU的自旋电子学研究。此外,还将进一步开发一个专门面向稀磁半导体研究界的网站。非技术摘要:该职业奖支持基础理论研究,以及教育和推广计划,重点研究涉及电子自旋的半导体现象。特别是PI将专注于旨在阐明电场如何驱动自旋传输的基本问题。PI旨在阐明当前围绕实验解释的争议,其中观察到电场在垂直于电场的方向上驱动自旋电流。这种现象提供了用电场操纵电子自旋的可能性,并为新的电子器件(自旋电子器件)开辟了可能性,其中它们的操作不仅取决于电子器件中的电子电荷,而且还取决于其自旋。 PI还将研究涉及磁性材料和稀磁半导体中电子自旋和电荷传输的其他现象。稀磁半导体是掺杂的半导体,因此它们含有磁性杂质。它们联合收割机结合了磁体和半导体的性质,是自旋电子器件的有前途的材料。基础研究本身是有趣和重要的,但也有助于新兴自旋电子学领域的知识基础。教育和推广部分有四个重点:(1)PI将与俄勒冈州州立大学的开发人员协调,整合、进一步开发和评估几个物理模块课程的范例。物理程序的范式包括几个短期模块类课程,在大三期间教授,重点是跨越物理学的几个分支的关键范式。这使学生能够更好地连接不同子领域的许多交织的想法。(2)PI将让本科生参与小组的研究项目。(3)PI将通过学生参与国际合作研究来加强研究生教育,包括访问国际实验组。(4)PI计划开展外联活动,以提高公众对自旋电子学及其在社会中的广泛影响的认识,包括公开讲座和开发一个网站,介绍TAMU的自旋电子学研究。此外,还将进一步开发一个专门面向稀磁半导体研究界的网站。

项目成果

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Jairo Sinova其他文献

Spin torque and shot noise in a ferromagnet-antiferromagnet tunnel junction
铁磁体-反铁磁体隧道结中的自旋扭矩和散粒噪声
  • DOI:
  • 发表时间:
    2017
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Georg Schwiete;Kei Yamamoto;Olena Gomonay;Jairo Sinova
  • 通讯作者:
    Jairo Sinova
Electric voltage generation by antiferromagnetic dynamics
通过反铁磁动力学产生电压
  • DOI:
    10.1103/physrevb.93.180408
  • 发表时间:
    2016
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Yuta Yamane;Jun'ichi Ieda;Jairo Sinova
  • 通讯作者:
    Jairo Sinova
Painting and erasing skyrmions
绘制和擦除斯格明子
  • DOI:
    10.1038/s41928-018-0078-0
  • 发表时间:
    2018-05-14
  • 期刊:
  • 影响因子:
    40.900
  • 作者:
    Karin Everschor-Sitte;Jairo Sinova;Artem Abanov
  • 通讯作者:
    Artem Abanov
TA実験234 : TALE実験用地表検出器のためのDAQエレクトロニクスの開発
TA 实验 234:开发用于 TALE 实验表面检测器的 DAQ 电子设备
  • DOI:
  • 发表时间:
    2013
  • 期刊:
  • 影响因子:
    0
  • 作者:
    O.A.Tretiakov;Ar.Abanov;Shuichi Murakami;Jairo Sinova;(a)後藤昂司
  • 通讯作者:
    (a)後藤昂司
Magnetism, symmetry and spin transport in van der Waals layered systems
范德华层状系统中的磁性、对称性和自旋输运
  • DOI:
    10.1038/s42254-021-00403-5
  • 发表时间:
    2022-01-12
  • 期刊:
  • 影响因子:
    39.500
  • 作者:
    Hidekazu Kurebayashi;Jose H. Garcia;Safe Khan;Jairo Sinova;Stephan Roche
  • 通讯作者:
    Stephan Roche

Jairo Sinova的其他文献

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{{ truncateString('Jairo Sinova', 18)}}的其他基金

Winter School and Workshop on spin physics and topological effects in cold atoms, condensed matter, and beyond
关于冷原子、凝聚态物质及其他领域的自旋物理和拓扑效应的冬季学校和研讨会
  • 批准号:
    1203476
  • 财政年份:
    2011
  • 资助金额:
    $ 40万
  • 项目类别:
    Standard Grant
Workshop on Semiconductor Nano-Spintronics: Spin-Hall Effect and Related Issues
半导体纳米自旋电子学研讨会:自旋霍尔效应及相关问题
  • 批准号:
    0527227
  • 财政年份:
    2005
  • 资助金额:
    $ 40万
  • 项目类别:
    Standard Grant

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