自旋轨道转矩

发布时间：2018-06-09 02:01

本文选题：自旋轨道转矩 + 自旋电子学　；参考：《物理》2017年05期

【摘要】：信息磁存储技术在日常生活中,特别是目前的"大数据"时代,扮演着极其重要的角色。随着物理学的深入研究和发展,磁存储技术也发生着翻天覆地的变化。磁性随机存储器被视为未来磁存储技术的一颗新星,低功耗、读写快的特点使其拥有着巨大并且广泛的应用前景。磁存储技术很大程度上依赖于写入和读取磁存储单元信息的效率。近年来,基于自旋轨道耦合这一基本物理原理发展而来的自旋轨道转矩,由于能够有效地控制磁存储单元的磁矩,而受到了凝聚态物理和电子信息领域的广泛关注。涉及自旋轨道转矩的物理效应,如自旋轨道耦合、自旋霍尔效应、Edelstein效应等,都正在被全世界科学家深入地研究中。文章涵盖了近年来自旋轨道转矩领域的最新研究进展,重点介绍了重金属、二维材料体系、拓扑绝缘体以及反铁磁体系中的自旋轨道转矩。文章最后展望了自旋轨道转矩未来的发展方向及其潜在的工业应用价值。
[Abstract]:Information magnetic storage technology plays an important role in daily life, especially in the big data era. With the further research and development of physics, magnetic storage technology is also changing dramatically. Magnetic random access memory (RAM) is regarded as a new star of magnetic memory technology in the future. It has a large and wide application prospect due to its low power consumption and fast reading and writing. Magnetic memory technology largely depends on the efficiency of writing and reading magnetic memory cell information. In recent years, the spin-orbit torque, which is based on the basic physics principle of spin-orbit coupling, has attracted extensive attention in the field of condensed matter physics and electronic information because it can effectively control the magnetic moment of magnetic memory cells. The physical effects of spin orbit torque, such as spin orbit coupling, spin Hall effect and Edelstein effect, are being deeply studied by scientists all over the world. This paper covers the latest research progress in the field of spin orbit torque in recent years, focusing on the introduction of heavy metals, two-dimensional material systems, topological insulators and spin orbit torque in antiferromagnetic systems. Finally, the future development direction of spin orbit torque and its potential industrial application value are prospected.
【作者单位】：北京大学物理学院量子材料科学中心;量子物质科学协同创新中心;
【基金】：国家重点研发计划(批准号:2015CB921104,2014CB920902) 国家自然科学基金(批准号:11574006)资助项目
【分类号】：O469;TP333

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