期刊
NATURE COMMUNICATIONS
卷 11, 期 1, 页码 -出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/s41467-020-14328-7
关键词
-
资金
- Agence Nationale de la Recherche [ANR-17-CE24-0008]
- Horizon2020 Research Framework Programme of the European Commission [751344]
- French RENATECH network
- European Regional Development Fund (European Commission) (ERDF)
- Ministry of Higher Education and Research (FNADT)
- Moselle Department
- Grand Est Region
- Metz Metropole
- AIRBUS-GDI Simulation
- CentraleSupelec
- Fondation CentraleSupelec
- Agence Nationale de la Recherche (ANR) [ANR-17-CE24-0008] Funding Source: Agence Nationale de la Recherche (ANR)
- Marie Curie Actions (MSCA) [751344] Funding Source: Marie Curie Actions (MSCA)
Harnessing chaos or intrinsic nonlinear behaviours of dynamical systems is a promising avenue toward unconventional information processing technologies. In this light, spintronic devices are promising because of the inherent nonlinearity of magnetization dynamics. Here, we demonstrate experimentally the potential for chaos-based schemes using nanocontact vortex oscillators by unveiling and characterizing their waveform patterns and symbolic dynamics using time-resolved electrical measurements. We dissociate nonlinear deterministic patterns from thermal fluctuations and show that the emergence of chaos results in the unpredictable alternation of well-defined patterns. With phase-space reconstruction techniques, we perform symbolic analyses of the time series and show that the oscillator exhibits maximal entropy and complexity at the centre of its incommensurate region. This suggests that such vortex-based systems are promising nanoscale sources of entropy that could be exploited for information processing.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据