Atomistic simulations of a 70 nm permalloy vortex and a bulk-like cube show nearly identical sub-picosecond demagnetization, with the vortex recovering and long-lived edge spin wave oscillations apparent afterwards.
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Massively parallel atomistic simulation of ultrafast thermal spin dynamics of a permalloy vortex
Atomistic simulations of a 70 nm permalloy vortex and a bulk-like cube show nearly identical sub-picosecond demagnetization, with the vortex recovering and long-lived edge spin wave oscillations apparent afterwards.