Low ferrimagnetic damping in Gd3Fe5O12 epitaxial films grown using pulsed laser deposition
Low ferrimagnetic damping in Gd3Fe5O12 epitaxial films grown using pulsed laser deposition
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DOI：
10.1063/5.0099618
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发表时间：
2022-08
影响因子：
4
通讯作者：
S. Funada;D. Kan;K. Kuwano;Y. Shiota;R. Hisatomi;T. Moriyama;Y. Shimakawa;T. Ono
中科院分区：
文献类型：
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作者：
S. Funada;D. Kan;K. Kuwano;Y. Shiota;R. Hisatomi;T. Moriyama;Y. Shimakawa;T. Ono
磁阻尼常数是磁矩进动时能量耗散的比例常数，它表征磁化动力学。在这项研究中，使用脉冲激光沉积生长亚铁磁性Gd3Fe5O12 (111)外延薄膜，并研究了亚铁磁共振和阻尼常数（αFiM）的温度依赖性。结果表明，αFiM 大约比迄今为止报道的其他亚铁磁性金属小一个数量级。我们的结果强调了 Gd3Fe5O12 薄膜在超低功耗自旋电子应用中的潜力。
The magnetic damping constant is a proportionality constant for energy dissipation upon the precession of the magnetic moment, and it characterizes magnetization dynamics. In this study, ferrimagnetic Gd3Fe5O12 (111) epitaxial films are grown using pulsed laser deposition, and the temperature dependence of the ferrimagnetic resonance and damping constant ( αFiM) is investigated. The results reveal that αFiM is approximately an order of magnitude smaller than those of other ferrimagnetic metals reported to date. Our results emphasize the potential of Gd3Fe5O12 films in ultralow-power spintronic applications.