Quasiclassical Equation of Motion for the Heisenberg Spin System
Yao-Chung Chang, George C. Summerfield
Previous results of quasiclassical spin dynamics are extended by presenting a new approximation for quantum corrections to the classical equation of motion for the Heisenberg model. The accuracy of the equation with these corrections is determined by comparing computer calculations based on this formalism with exact quantum and classical results for spin pair correlation functions for a six-spin linear chain at infinite temperatures.
Physical review. B, Solid state•Dec 1, 1971•4 citations