Dynamical scaling in close-to-equilibrium adsorption Academic Article uri icon


  • Scaling of the hysteresis loop in a close-to-equilibrium adsorption-desorption (CEAD) process is explored. We consider the response of the CEAD process to a chemical potential which varies harmonically with time, = av + 0 sin(2t/). av corresponds to the coverage = 1/2 at equilibrium. The cycle time is assumed to be sufficiently large so that the system is in thermal equilibrium at all times. The area A of the adsorption-desorption cycle loop scales as A 0 -. We show that for growth-controlled hysteresis (GCH), i.e. in the limit of a small nucleation time n , = 1/2 and = 1/2 for GCH, and confirm this prediction by numerical simulation of a simple model. Possible experimental checks of these predictions are discussed.

published proceedings


author list (cited authors)

  • Lyuksyutov, I. F., Pfnur, H., & Everts, H. U.

citation count

  • 3

complete list of authors

  • Lyuksyutov, IF||Pfnur, H||Everts, HU

publication date

  • February 1998