PROJECT TITLE :

Design of magnetic tunnel junction-based tunable spin torque oscillator at nanoscale regime

ABSTRACT:

This study proposes a spintronic primarily based compact tunable nano-sized RF oscillator. The proposed style provides parametric performance improvement as compared with the designs already reported in literature. This design additionally offers higher operating frequency up to range of many GHz, which will be tuned by a DC bias current. The proposed magnetic tunnel junction-spin torque oscillators (MTJ-STO) model overcomes the limitation of low output power that is prime issue in spin torque oscillators (STOs). This is achieved by using multi-stage amplifier with impedance matching stages. Additionally to that, mutual phase locking mechanism of STOs is introduced to act as a remedy for broadening of the spectrum linewidth, that could be a critical issue in traditional oscillators. The hybrid model presented in this study contains spin torque primarily based MTJ, that is compatible with CMOS technology. The modelling of proposed circuit has been tired Verilog-A and simulation results are verified using HSPICE.


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