Chemical epitaxial growth of nm-thick yttrium iron garnet films with low Gilbert damping

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• 作者：Dainan Zhang^a ; ^b ; Lichuan Jin^a ; ^{lichuanj@uestc.edu.cn} ; Huaiwu Zhang^a ; Qinghui Yang^a ; Yiheng Rao^a ; Qiye Wen^a ; Tingchuan Zhou^a ; Cheng Liu^a ; Zhiyong Zhong^a ; John Q. Xiao^c
• 关键词：Yttrium iron garnet film ; Epitaxial growth ; Ferromagnetic resonance linewidth ; Gilbert damping
• 刊名：Journal of Alloys and Compounds
• 出版年：2017
• 出版时间：25 February 2017
• 年：2017
• 卷：695
• 期：Complete
• 页码：2301-2305
• 全文大小：975 K
• 卷排序：695

文摘

Chemical epitaxial growth of nanometer YIG films is proposed. Average surface roughness is ∼0.8 nm for 50 nm YIG films. The extracted Gilbert damping constant is as low as 1.4 × 10−3. YIG films are fabricated upon heavy metal Pt buffered GGG for the first time. Inhomogeneous linewidth for YIG/Pt/GGG has been greatly enhanced up to 108 Oe.