Algorithm for molecular dynamics simulations of spin liquids

Abstract

A new symplectic time-reversible algorithm for numerical integration of the equations of motion in magnetic liquids is proposed. It is tested and applied to molecular dynamics simulations of a Heisenberg spin fluid. We show that the algorithm exactly conserves spin lengths and can be used with much larger time steps than those inherent in standard predictor-corrector schemes. The results obtained for time correlation functions demonstrate the evident dynamic interplay between the liquid and magnetic subsystems.

4 pages, 2 figures; to be published in Phys. Rev. Lett

References in corpus (1)

• Conservation-laws-preserving algorithms for spin dynamics simulations

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