Magnon-Magnon Interaction Induced by Nonlinear Spin-Wave Dynamics
Matteo Arfini (Kavli institute of nanoscience Delft, TU Delft - QN/Steele Lab)
Alvaro Bermejillo-Seco (TU Delft - QN/van der Zant Lab)
Artem Bondarenko (Kavli institute of nanoscience Delft, TU Delft - QN/Blanter Group)
Clinton A. Potts (TU Delft - QN/Steele Lab, University of Copenhagen)
Yaroslav M. Blanter (Kavli institute of nanoscience Delft, TU Delft - QN/Blanter Group)
Herre S.J. van der Zant (TU Delft - QN/van der Zant Lab, Kavli institute of nanoscience Delft)
Gary A. Steele (Kavli institute of nanoscience Delft, TU Delft - QN/Steele Lab)
More Info
expand_more
Other than for strictly personal use, it is not permitted to download, forward or distribute the text or part of it, without the consent of the author(s) and/or copyright holder(s), unless the work is under an open content license such as Creative Commons.
Abstract
We experimentally and theoretically demonstrate that nonlinear spin-wave dynamics can induce an effective resonant interaction between nonresonant magnon modes in a yttrium iron garnet disk. Under strong pumping near the ferromagnetic resonance mode, we observe a spectral splitting that emerges with increasing drive amplitude. This phenomenon is well captured by a theoretical framework based on the linearization of a magnon three-wave mixing Hamiltonian, which at high power leads to parametric Suhl instabilities. The access and control of nonlinear magnon-parametric processes enable the development of experimental platforms in an unexplored parameter regime for both classical and quantum computation protocols.