Current-Induced Magnetization Switching of CoFeB/Ta/[Co/Pd (Pt)]-Multilayers in Magnetic Tunnel Junctions With Perpendicular Anisotropy
Current-Induced Magnetization Switching of CoFeB/Ta/[Co/Pd (Pt)]-Multilayers in Magnetic Tunnel Junctions With Perpendicular Anisotropy
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具有垂直各向异性的磁隧道结中 CoFeB/Ta/[Co/Pd (Pt)] 多层的电流感应磁化开关
DOI：
10.1109/tmag.2016.2517098
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发表时间：
2016
影响因子：
2.1
通讯作者：
H. Ohno
中科院分区：
文献类型：
--
作者：
S. Ishikawa;E. C. Enobio;Hideo Sato;S. Fukami;F. Matsukura;H. Ohno
我们研究了CoFeB/Ta/[Co/Pd（Pt）]多层膜的磁性，以及以该结构作为记录层的磁性隧道结（MTJs）的特性。CoFeB/Ta/[Co/Pd]多层膜的阻尼常数α低于CoFeB/Ta/[Co/Pt]多层膜。我们评估了结直径为15（13）纳米且热稳定性因子相近的、具有CoFeB/Ta/[Co/Pd（Pt）]多层膜的磁性隧道结的电流诱导磁化翻转（CIMS）特性。对于具有CoFeB/Ta/[Co/Pd]多层膜的磁性隧道结，在零磁场下即可观察到CIMS；而对于具有CoFeB/Ta/[Co/Pt]多层膜的磁性隧道结，仅在存在外磁场时才能观察到CIMS。
We investigate magnetic properties of CoFeB/Ta/[Co/Pd (Pt)] multilayers and properties of magnetic tunnel junctions (MTJs) with the structures as a recording layer. CoFeB/Ta/[Co/Pd] multilayer shows a lower damping constant α than that of CoFeB/Ta/[Co/Pt] multilayer. We evaluate current-induced magnetization switching (CIMS) properties of the MTJs with CoFeB/Ta/[Co/Pd (Pt)] multilayers with the junction diameter of 15 (13) nm that show similar thermal stability factor. CIMS is observed for the MTJ with a CoFeB/Ta/[Co/Pd] multilayer at zero magnetic field, whereas it is observed for the MTJ with the CoFeB/Ta/[Co/Pt] multilayer only in the presence of an external field.
影响因子：
3.2
作者：
Eriko Hirayama;S. Kanai;Hiroki Sato;F. Matsukura;H. Ohno
通讯作者：
Eriko Hirayama;S. Kanai;Hiroki Sato;F. Matsukura;H. Ohno