Effect of oxygen migration on magnetic anisotropy and damping constant in perpendicular Ta/CoFeB/Gd/MgO/Ta multilayers

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• 作者：Guang Yang^a ; ^b ; Jing-Yan Zhang^a ; Shao-Long Jiang^a ; Bo-Wen Dong^a ; Shou-Guo Wang^a ; ^{sgwang@ustb.edu.cn} ; Jia-Long Liu^b ; Yun-Chi Zhao^b ; Chao Wang^b ; Young Sun^b ; Guang-Hua Yu^a ; ^{ghyu@mater.ustb.edu.cn}
• 关键词：Oxygen migration ; Perpendicular magnetic anisotropy ; Magnetic damping
• 刊名：Applied Surface Science
• 出版年：2017
• 出版时间：28 February 2017
• 年：2017
• 卷：396
• 期：Complete
• 页码：705-710
• 全文大小：1393 K
• 卷排序：396

文摘

Gd insertion layer at CoFeB/MgO interface plays an important role in interfacial oxygen migration. The perpendicular magnetic anisotropy can be well maintained in CoFeB/Gd/MgO multilayers. By optimizing Gd thickness, the effective damping constant is significantly reduced.