Impact of thermal noise in Magneto Resistance Tilted Polarizer based spintronic oscillator - A macro-spin insight.

In the present work, we have modeled a heterogeneous Magneto Resistance Tilted Polarizer-based Spin Torque Nano Oscillator [MRTP-STNO] theoretically. The idea of the work is to investigate the impact of thermal noise on the frequency as well the PSD of the above mentioned device by including the H_th in the H_eff. The precession of magnetization dynamics led by Spin Transfer Torque [STT] is studied numerically by solving the equation called Landau-Lifshitz-Gilbert-Slonczewski [LLGS]. Here, β is the independent tilt angle of the fixed layer and θ is the angle between free layer magnetization and the easy axis of the device, respectively. Both the angles can be varied from 10° to 90° as an increment of 10°. The maximum frequency of the modeled device is about 235.5 GHz and PSD of 1.74 µW/mA²/GHz in the absence of thermal noise and in the presence of thermal noise the frequency as well as the corresponding PSD is recorded as 215.4 GHz and PSD of 1.70 µW/mA²/GHz. The author sparks that the modeled device applies to High-Frequency applications and opens a new platform for forthcoming devices during its practical usage. [ABSTRACT FROM AUTHOR]