Pattern recognition with neuromorphic computing using magnetic field-induced dynamics of skyrmions.

ABSTRACT: Nonlinear phenomena in physical systems can be used for brain-inspired computing with low energy consumption. Response from the dynamics of a topological spin structure called skyrmion is one of the candidates for such a neuromorphic computing. However, its ability has not been well explored experimentally. Here, we experimentally demonstrate neuromorphic computing using nonlinear response originating from magnetic field-induced dynamics of skyrmions. We designed a simple-structured skyrmion-based neuromorphic device and succeeded in handwritten digit recognition with the accuracy as large as 94.7% and waveform recognition. Notably, there exists a positive correlation between the recognition accuracy and the number of skyrmions in the devices. The large degrees of freedom of skyrmion syste

SUBMITTER: Yokouchi T 

PROVIDER: S-EPMC9524829 | biostudies-literature | 2022 Sep

REPOSITORIES: biostudies-literature