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Further miniaturization of communication devices is bottlenecked by inductor-based oscillators, which potentially could be replaced by spin-torque nano-oscillators (STNOs). Progress is thwarted, however, by the low microwave power delivered by typical STNOs based on trilayer magnetic tunnel junctions. This work proposes to utilize the physics of double-barrier resonant tunneling in an STNO designed for significantly enhanced microwave power and conversion efficiency. This conceptual framework just might provide the spintronic cure for these technological ills.
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Sharma et al. (2017) studied this question.
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