Synchronization of spin torque nano-oscillators through dipolar interactions

被引：15

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.

引用

页数：12

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