Nanoconstriction-based spin-Hall nano-oscillator
Nanoconstriction-based spin-Hall nano-oscillator
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DOI：
10.1063/1.4901027
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发表时间：
2014-10-27
影响因子：
4
通讯作者：
Demokritov, S. O.
中科院分区：
文献类型：
--
作者：
Demidov, V. E.;Urazhdin, S.;Demokritov, S. O.
我们通过实验证明了由领结形纳米收缩中的自旋霍尔效应产生的纯自旋电流驱动的磁性纳米振荡器。这些器件表现出单模自动振荡，并生成高度相干的电子微波信号，在室温下具有高功率和低至 6.2MHz 的光谱线宽。所提出的简单而灵活的器件几何结构适合于直接实现先进的自旋电子结构，例如相互耦合的自旋霍尔纳米振荡器链。 (C) 2014 AIP 出版有限责任公司。
We experimentally demonstrate magnetic nano-oscillators driven by pure spin current produced by the spin Hall effect in a bow tie-shaped nanoconstriction. These devices exhibit single-mode auto-oscillation and generate highly-coherent electronic microwave signals with a significant power and the spectral linewidth as low as 6.2MHz at room temperature. The proposed simple and flexible device geometry is amenable to straightforward implementation of advanced spintronic structures such as chains of mutually coupled spin-Hall nano-oscillators. (C) 2014 AIP Publishing LLC.