Simulation of coupled spin torque oscillators for pattern recognition
作者： Bogdan Popescu , Gyorgy Csaba , Dan Popescu , Amir Hossein Fallahpour , Paolo Lugli
DOI: 10.1063/1.5042423
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摘要: In this paper, we use circuit-level simulations to investigate the synchronization dynamics of spin torque oscillators (STOs) and demonstrate a pattern recognition scheme based on STO dynamics. We perform sensitivity analysis in order determine robustness different coupling methods, considering parameter variations, such as radius or thickness STOs. After pointing out advantages cross coupled architecture, for recognition. Several patterns are encoded resistive network successfully identified, after has been initialized correspondingly. Finally, by extracting corresponding impulse function, show how an existing analytical phase domain model can be adapted array. compare results with numerical conclude that they agree well providing thus fast method design.
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