ABSTRACT
Customarily, critical phenomena are classified into
two categories, static and dynamic. Static phenomena con-
cern equilibrium properties such as magnetization, suscepti-
bility, specific heat, the probability distribution of spin con-
figurations, and the average size of the spin patches. Dy-
namic phenomena concern time dependent phenomena, such
as relaxation times, heat diffusion, and spin wave propaga-
tion. Up ' ’ntil now static phenomena have been much better
understood than dynamic phenomena.
