Power-law decay in first-order relaxation processes
arXiv:cond-mat/0504443 · doi:10.1103/PhysRevB.72.024302
Abstract
Starting from a simple definition of stationary regime in first-order relaxation processes, we obtain that experimental results are to be fitted to a power-law when approaching the stationary limit. On the basis of this result we propose a graphical representation that allows the discrimination between power-law and stretched exponential time decays. Examples of fittings of magnetic, dielectric and simulated relaxation data support the results.
to appear in Phys. Rev. B; 4 figures