![]() Macrospin theory and micromagnetic simulation provide insight into the origin of bias field free auto-oscillation and the spiking phenomena in our SHNO. We further demonstrate the reconfigurability of spiking dynamics in response to a time-varying input accomplished by continuously increasing the input current density as a linear function of time. ![]() The frequency of regular periodic spiking is tunable in a range of 0.5–0.96 GHz (460 MHz bandwidth) through adjusting the magnitude of constant input DC current density. We demonstrate regular periodic spiking with tunable frequency as well as the leaky integrate-and-fire (LIF) behavior in a single SHNO by manipulating the pulse features of input current. ![]() In this paper, we theoretically investigate neuronlike spiking dynamics in an elliptic ferromagnet (FM)/heavy metal bilayer-based spin Hall nano-oscillator (SHNO) in a bias field free condition, very suitable for practical realization of brain-inspired computing schemes.
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