Spin-Torque Nano-Oscillators

Spin-torque nano-oscillators (STNOs) are able to transfer dc current to RF voltage have shown a great potential for application as sub-micron elements in the next generation microwave generators, tunable with current and magnetic field. In this paper, fabrication and characterization of STNOs will be presented. Output frequency of the STNO as a function of current and magnetic field will be investigated. Based on the achievements and modeling, we predict a sub-THz response of the STNOs via tuning the magnetic anisotropy of the free layer. Finally, results exhibit application of STNOs as wide band microwave signal generators in next generation of integrated micro-electronic components.