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From microelectronics to spintronics and magnonics
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作者 Xiu-Feng Han Cai-Hua Wan +6 位作者 Hao Wu Chen-Yang Guo Ping Tang Zheng-Ren Yan Yao-Wen Xing Wen-Qing He Guo-Qiang Yu 《Chinese Physics B》 SCIE EI CAS CSCD 2022年第11期12-22,共11页
In this review,the recent developments in microelectronics,spintronics,and magnonics have been summarized and compared.Firstly,the history of the spintronics has been briefly reviewed.Moreover,the recent development o... In this review,the recent developments in microelectronics,spintronics,and magnonics have been summarized and compared.Firstly,the history of the spintronics has been briefly reviewed.Moreover,the recent development of magnonics such as magnon-mediated current drag effect(MCDE),magnon valve effect(MVE),magnon junction effect(MJE),magnon blocking effect(MBE),magnon-mediated nonlocal spin Hall magnetoresistance(MNSMR),magnon-transfer torque(MTT)effect,and magnon resonant tunneling(MRT)effect,magnon skin effect(MSE),etc.,existing in magnon junctions or magnon heterojunctions,have been summarized and their potential applications in memory and logic devices,etc.,are prospected,from which we can see a promising future for spintronics and magnonics beyond micro-electronics. 展开更多
关键词 magnon valve effect magnon junction effect magnon resonant tunneling effect magnon-transfer torque effect
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Control of Hall angle of Skyrmion driven by electric current
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作者 刘高斌 李达 +3 位作者 de Chatel P F 王健 刘伟 张志东 《Chinese Physics B》 SCIE EI CAS CSCD 2016年第6期439-443,共5页
Skyrmions are very promising for applications in spintronics and magnetic memory.It is desired to manipulate and operate a single skyrmion.Here we report on the thermal effect on the motion of current-driven magnetic ... Skyrmions are very promising for applications in spintronics and magnetic memory.It is desired to manipulate and operate a single skyrmion.Here we report on the thermal effect on the motion of current-driven magnetic Skyrmions in magnetic metal.The results show that the magnon current induced by the thermal gradient acts on Skyrmions via magnonic spin-transfer torque,an effect of the transverse and longitudinal Skyrmions drift velocities,thus leading to the effective manipulation of the Hall angle through the ratio of thermal gradient to electric current density,which can be used as a Skyrmion valve. 展开更多
关键词 spin-transfer torque Hall angle magnon current Skyrmion valve
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磁子自旋转移力矩驱动的畴壁纳米振荡器
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作者 范明明 颜明 《科学通报》 EI CAS CSCD 北大核心 2024年第21期3185-3190,共6页
自旋纳米振荡器是一种新型的自旋电子学器件,与传统的半导体振荡器相比,具有尺寸小、调频范围宽、易集成等优点.以往的自旋纳米振荡器通常是由自旋极化电流通过自旋转移力矩效应进行驱动.本文提出一种可能的由自旋波驱动的纳米振荡器的... 自旋纳米振荡器是一种新型的自旋电子学器件,与传统的半导体振荡器相比,具有尺寸小、调频范围宽、易集成等优点.以往的自旋纳米振荡器通常是由自旋极化电流通过自旋转移力矩效应进行驱动.本文提出一种可能的由自旋波驱动的纳米振荡器的设计方案.我们的微磁学模拟结果表明,圆柱形铁磁纳米线中的钉扎畴壁在自旋波的驱动下可以发生持续进动.畴壁进动频率在GHz量级,与透射自旋波振幅呈正相关,与材料的阻尼系数呈负相关.畴壁的进动方向由自旋波的传播方向及畴壁类型决定.基于磁子自旋转移力矩效应建立的理论模型可以定量解释圆柱形纳米线中自旋波驱动的钉扎畴壁的动力学性质.这一发现原则上为铁磁纳米结构中自旋波的输出提供了一条新的途径,对于发展未来自旋电子学器件具有潜在的应用价值. 展开更多
关键词 自旋波 畴壁 微磁学模拟 磁子自旋传递力矩 纳米振荡器
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