Spin–Orbit Torques in Metallic Magnetic Multilayers: Challenges and New Opportunities
Spin–Orbit Torques in Metallic Magnetic Multilayers: Challenges and New Opportunities
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DOI：
10.1142/s2010324717400136
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发表时间：
2017-10
期刊：
影响因子：
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通讯作者：
Tao Wang;J. Xiao;X. Fan
中科院分区：
文献类型：
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作者：
Tao Wang;J. Xiao;X. Fan
在巨磁电阻的发现给硬盘驱动器带来革命性变化的二十年后，基于自旋矩的磁性随机存取存储器的快速发展再次证明了自旋电子学在实际应用中的巨大潜力。虽然工业应用主要集中在磁性隧道结中电流诱导自旋转移矩（STT）的实现，但由于磁性多层膜中的自旋轨道相互作用，出现了一种新型的自旋矩。自旋-轨道矩（SOT）不仅具有重要的基础科学意义，而且在电流感生磁化翻转的应用方面也具有潜在的应用价值。在本文中，我们将回顾SOTs的最新发展，包括基本认识，材料开发和测量技术。我们还将讨论在潜在的应用中使用SOT的挑战，特别是在开关…
Two decades after the discovery of the giant magnetoresistance that revolutionizes the hard disk drive, the rapid development of spin torque-based magnetic random access memory has once again demonstrated the great potential of spintronics in practical applications. While the industrial application is mainly focusing on the implementation of current-induced spin transfer torque (STT) in magnetic tunnel junctions, a new type of spin torque emerges due to the spin–orbit interaction in magnetic multilayers. A great effort has been devoted by the scientific community to study the so-called spin–orbit torque (SOT), which is not only of interest to fundamental science, but also exhibits potential for the application of current-induced magnetization switching. In this paper, we will review recent development in the SOTs including the fundamental understanding, materials development and measurement techniques. We will also discuss the challenges of using the SOT in potential applications, particularly on the swit...