Corpus ID: 237420917

Spin-current amplification by stimulated spin pumping

  title={Spin-current amplification by stimulated spin pumping},
  author={Benjamin Assouline and Marina Brik and Nirel Bernstein and Amir Capua},
Stimulated emission is a process during which an atomic system gives away energy to create a coherent photon. It is fundamental to the operation of the optical amplifier. Here we propose two mechanisms for amplifying AC spin currents in a solid-state magnetic medium by a stimulated spin pumping process. The first is synchronous and consists of phase-locked pulses that perturb a precessing magnetic moment. The second is asynchronous and is driven by DC spin currents. The amplification relies on… Expand

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