2023
DOI: 10.1088/1674-1056/acb424
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Spin torque oscillator based on magnetic tunnel junction with MgO cap layer for radio-frequency-oriented neuromorphic computing

Abstract: Recently, it’s proposed that spin torque oscillators and spin torque diodes can be used as artificial neurons and synapses to directly process the microwave signal, which can lower latency and power consumption greatly. However, one critical challenge is to make the microwave emission frequency of the STO stay constant with the varying input current. In this work, we study the microwave emission characteristics of STO based on magnetic tunnel junction with MgO cap layer. By applying a small magnetic field, we … Show more

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