Abstract
In the absence of an applied magnetic field, a spin-torque nano-oscillator with a tilted polarizer is studied using numerical simulations of the associated Landau–Lifshitz–Gilbert–Slonczewski equation. We find considerable enhancement of frequencies by tilting the polarizer out-of-plane appropriately. Also, we observe improved tunability of frequencies of oscillations from ∼15GHz to ∼75GHz and increments in the power spectral density by current and tilt angles. In addition, our findings and insights pave a simple way for implementation of nanoscale level microwave generators.
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