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cond-mat.mes-hall2023
Non-linear dynamics near exceptional points of synthetic antiferromagnetic spin-torque oscillators
R. A. Duine, V. Errani, J. S. Harms
We consider a synthetic antiferromagnetic spin-torque oscillator with anisotropic interlayer exchange coupling. This system exhibits exceptional points in its linearized dynamics.…
cond-mat.mes-hall2023★ 8 cited
Zero-frequency chiral magnonic edge states protected by non-equilibrium topology
Pieter M. Gunnink, Joren S. Harms, Rembert A. Duine +1
Topological bosonic excitations must, in contrast to their fermionic counterparts, appear at finite energies. This is a key challenge for magnons, as it prevents straightforward ex…