Title: Transition Jitter in Heat Assisted Magnetic Recording by Micromagnetic Simulation,
Abstract: In this paper we apply an extended Landau-Lifschitz equation, as introduced
by Baňas et al. for the simulation of heat-assisted magnetic recording.
This equation has similarities with the Landau-Lifshitz-Bloch equation. The
Baňas equation is supposed to be used in a continuum setting with sub-grain
discretization by the finite-element method. Thus, local geometric features and
nonuniform magnetic states during switching are taken into account. We
implement the Baňas model and test its capability for predicting the
recording performance in a realistic recording scenario. By performing
recording simulations on 100 media slabs with randomized granular structure and
consecutive read back calculation, the write position shift and transition
jitter for bit lengths of 10nm, 12nm, and 20nm are calculated.