A quantum-classical simulation predicts that magnetic domain wall annihilation generates ultrabroadband spin pumping with frequencies up to 27 THz and nonlocal damping about 2.4 times the local Gilbert damping.
Braun, Topological effects in nanomagnetism: From superparamagnetism to chiral quantum solitons, Adv
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Annihilation of topological solitons in magnetism with spin wave burst finale: The role of nonequilibrium electrons causing nonlocal damping and spin pumping over ultrabroadband frequency range
A quantum-classical simulation predicts that magnetic domain wall annihilation generates ultrabroadband spin pumping with frequencies up to 27 THz and nonlocal damping about 2.4 times the local Gilbert damping.