Robust synchronization of spin-torque oscillators with an LCR load.

Robust synchronization of spin-torque oscillators with an LCR load.
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自旋扭矩振荡器与 LCR 负载的鲁棒同步

DOI:
10.1103/physreve.88.032812
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发表时间:
2013
期刊:
Physical review. E, Statistical, nonlinear, and soft matter physics
影响因子:
--
通讯作者:
A. Pikovsky
A. Pikovsky
中科院分区:
--
文献类型:
--
作者:
A. Pikovsky

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研究了电感-电容-电阻并联负载下的自旋转矩振荡器的动力学特性。在很大的参数范围内,当所有振子都具有相同的状态且输出场最大时,完全同步状态是稳定的。然而,这种鲁棒的完全同步并不总是从随机初始状态发展而来;在许多情况下,观察到非平凡的聚类,部分同步导致准周期或混沌平均场动力学。
We study dynamics of a serial array of spin-torque oscillators with a parallel inductor-capacitor-resistor () load. In a large range of parameters the fully synchronous regime, where all the oscillators have the same state and the output field is maximal, is shown to be stable. However, not always such a robust complete synchronization develops from a random initial state; in many cases nontrivial clustering is observed, with a partial synchronization resulting in a quasiperiodic or chaotic mean-field dynamics.