Fig. 6: Coercive field test. | npj Computational Materials

Fig. 6: Coercive field test.

From: Full-spin-wave-scaled stochastic micromagnetism for mesh-independent simulations of ferromagnetic resonance and reversal

Fig. 6

Coercive field of a hard magnetic 10 nm cube calculated with a field sweep rate of v = 250 mT ns−1. The anisotropy field is μ0Hani = 6.71 T. Conventional, non-thermal LLG gives a mesh independent coercive field of 6.36 T, reduced from the anisotropy field by the magnetostatic fields. Unscaled sLLG produces a coercive field heavily dependent on the mesh size, and outside the gray band of theoretical expectations in the entire mesh-size range. In contrast, FUSSS LLG greatly reduces the mesh-size dependence and produces a coercive field that is inside the gray band of expectations for most mesh sizes. The error bars show the standard deviation, and the symbols show the mean of ten independent stochastic calculations.

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