Implementation of the “Hyperdynamics of Infrequent Events” Method for Acceleration of Thermal Switching Dynamics of Magnetic Moments
作者： O.A. Chubykalo-Fesenko , F.G. Sanchez , R.W. Chantrell
关键词: Numerical analysis 、 Acceleration 、 First-hitting-time model 、 Computational electromagnetics 、 Physics 、 Magnetic anisotropy 、 Field (physics) 、 Mechanics 、 Magnetic potential 、 Classical mechanics 、 Computation 、 Electrical and Electronic Engineering 、 Electronic, Optical and Magnetic Materials
摘要: For acceleration of the calculations thermal magnetic switching, we report use Voter method, recently proposed in chemical physics (also called "hyperdynamics infrequent events"). The method consists modification potential so that transition state remains unchanged. We have found correctly describes mean first passage time even case small damping (precessional case) and for an oblique angle between anisotropy field directions. Due to costly evaluation lowest energy eigenvalue, actual depends on its fast computation. In current implementation, it is limited intermediate scale system size.
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