Frequency enhancement and power tunability in tilted polarizer spin-torque nano oscillator
arXiv:2004.02659 · doi:10.1063/1.5143195
Abstract
In the absence of an applied magnetic field, a spin-torque nano oscillator(STNO) with a tilted polarizer is studied using numerical simulation of the associated Landau-Lifshitz-Gilbert-Slonczewski equation. We find considerable enhancement of frequency by tilting the polarizer out-of-plane appropriately. Also, we observe improved tunability of frequency of oscillations from 15 GHz to 75 GHz and increment in the power spectral density by current and tilt angle. In addition, our findings and insights pave a simple way for nanoscale level microwave generators to be implemented.
12 pages,7 figures, Accepted for publication in Journal of Applied Physics
References in corpus (5)
- Spin Transfer Torques
- Bias-driven large power microwave emission from MgO-based tunnel magnetoresistance devices
- Mutual synchronization of spin-torque oscillators consisting of perpendicularly magnetized free layers and in-plane magnetized pinned layers
- Field-Free Synthetic-Ferromagnet Spin Torque Oscillator
- Enhanced synchronization in an array of spin torque nano oscillators in the presence of oscillating external magnetic field