Electric Field Induced Magnetization Switching in CoFeB-MgO - Static Magnetic Field Angle Dependence -
Electric Field Induced Magnetization Switching in CoFeB-MgO - Static Magnetic Field Angle Dependence -
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CoFeB-MgO 中的电场感应磁化翻转 - 静态磁场角度依赖性 -
DOI：
10.1109/tmag.2013.2278559
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发表时间：
2014
期刊：
影响因子：
--
通讯作者：
and Hideo Ohno
中科院分区：
文献类型：
--
作者：
Shun Kanai;Michihiko Yamanoichi;Shoji Ikeda;Yoshinobu Nak atani;Fumihiro Matsukura;and Hideo Ohno
我们研究了具有垂直磁易轴的 CoFeB/MgO 基磁性隧道结在不同方向的静态磁场下电场引起的磁化强度切换的切换概率。切换通过磁化进动进行，其周期由磁场面内分量的大小决定。宏观自旋模拟很好地再现了实验结果。模拟表明，由热波动和/或其他效应引起的退相干限制了本系统中的切换概率。
We investigate switching probabilities of electric field-induced magnetization switching in CoFeB/MgO based magnetic tunnel junction with perpendicular magnetic easy axis under static magnetic field with various directions. The switching takes place through magnetization precession with the period determined by the magnitude of the in-plane component of magnetic field. The experimental results are well reproduced by macro-spin simulation. The simulation reveals that decoherence induced by thermal fluctuations and/or other effects limit the switching probabilities in the present system.