Stiffness in Micromagnetic Simulations
نویسنده
چکیده
In this paper we investigate stiffness in micromagnetic simulations in the ODE context. We introduce some pragmatic measures of stiffness based on the total number of time steps taken by a non stiff and a stiff method to solve the LLG equation, and the cost of each method per time step. We present a family of micromagnetic calculations that simulates materials with strong exchange coupling between grains, and varying crystalline anisotropy. The simulations show a high degree of stiffness.
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