Frequency modulation of spin torque oscillator pairs
arXiv:1007.2305 · doi:10.1063/1.3588218
Abstract
The current controlled modulation of nano-contact based spin torque oscillator (STO) pairs is studied in both the synchronized and non-synchronized states. The synchronized state shows a well behaved modulation and demonstrates robust mutual locking even under strong modulation. The power distribution of the modulation sidebands can be quantitatively described by assuming a single oscillator model. However, in the non-synchronized state, the modulation sidebands are not well described by the model, indicating interactions between the two individual nano-contact STOs. These findings are promising for potential applications requiring the modulation of large synchronized STO arrays.
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- Spin wave excitation patterns generated by spin torque oscillators
- Time-domain stability of parametric synchronization in a spin-torque nano-oscillator based on a magnetic tunnel junction
- Mutual synchronization in spin torque and spin Hall nano-oscillators
- Generation of Multipeak Spectrum of Spin Torque Oscillator in Non-linear Regime