Synchronization of spin torque nano-oscillators through dipolar interactions

被引：14
|
作者：
Chen, Hao-Hsuan [1 ]
Lee, Ching-Ming [2 ]
Wu, Jong-Ching [1 ]
Horng, Lance [1 ]
Chang, Ching-Ray [3 ,4 ]
Chang, Jui-Hang [3 ,4 ]
机构：
[1] Natl Changhua Univ Educ, Dept Phys, Changhua 500, Taiwan
[2] Natl Yunlin Univ Sci & Technol, Grad Sch Mat Sci, Touliu 64002, Taiwan
[3] Natl Taiwan Univ, Dept Phys, Taipei 10617, Taiwan
[4] Natl Taiwan Univ, Ctr Quantum Sci & Engn, Taipei 10617, Taiwan
来源：
JOURNAL OF APPLIED PHYSICS | 2014年 / 115卷 / 13期
关键词：
MAGNETIZATION REVERSAL; PHASE-LOCKING; DRIVEN; MULTILAYER; EXCITATION; POLARIZER;
D O I：
10.1063/1.4869203
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
In an array of spin-torque nano-oscillators (STNOs) that combine a perpendicular polarized fixed layer with strong in-plane anisotropy in the free layers, magnetic dipolar interactions can effectively phase-lock the array, thus further enhancing the power of the output microwave signals. We perform a qualitative analysis of the synchronization of an array based on the Landau-Lifshitz-Gilbert equation, with a spin-transfer torque that assumes strong in-plane anisotropy. Finally, we present the numerical results for four coupled STNOs to provide further evidence for the proposed theory. (C) 2014 AIP Publishing LLC.
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收藏
页数：12
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