Abstract
The operation of a spin-injection emitter of electromagnetic oscillations with a Ni/NiO/Fe magnetic tunnel junction was first investigated. Using a nonconducting NiO spacer in a magnetic junction, the effect of the potential difference at the interface between magnetic layers on the efficiency of spin-injection emitters is determined. A model of the investigated emitter is theoretically described and the efficiencies of the emitters with a magnetic tunnel junction and a magnetic junction without an Ni/Fe spacer are experimentally compared. The possibility of enhancing the efficiency of the spin-injection emitter by using the magnetic tunnel junction is demonstrated.
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