Substrate effect on the ferromagnetic resonance linewidth in yttrium iron garnet epilayers

被引：2
|
作者：
Yushchuk, SI [1 ]
Kostyuk, PS [1 ]
Loboiko, VI [1 ]
机构：
[1] Lviv State Polytech Univ, UA-79013 Lvov, Ukraine
来源：
INORGANIC MATERIALS | 2002年 / 38卷 / 02期
关键词：
Iron; Inorganic Chemistry; Gallium; Yttrium; Gadolinium;
D O I：
10.1023/A:1014077430105
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The structural perfection of gadolinium gallium garnet (GGG) substrates was shown to have a strong effect on the ferromagnetic resonance (FMR) linewidth in the yttrium iron garnet (YIG) epilayers. The most detrimental imperfections are dislocation pileups and iridium inclusions. A substrate preparation procedure was proposed which ensures the growth of YIG layers 4.7-5 mum in thickness, with an FMR linewidth of 24-40 A/m. YIG layers up to 70 gm in thickness were grown using lattice-matched iron garnet buffer layers.
引用
收藏
页码：179 / 181
页数：3
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