title: Memory effects in a nonequilibrium growth model.
abstract: We study memory effects in a kinetic roughening model. For d=1, a different dynamic scaling is uncovered in the memory dominated phases; the Kardar-Parisi-Zhang scaling is restored in the absence of noise. dc=2 represents the critical dimension where memory is shown to smoothen the roughening front (alpha<or=0). Studies on a discrete atomistic model in the same universality class reconfirm the analytical results in the large time limit, while a different scaling behavior shows up for t<tau, with tau being the memory characteristic of the atomistic model. Results can be generalized for other nonconservative systems.
authors: Department of Physics and Astrophysics, University of Delhi, Delhi 110007, India. achattop@physics.du.ac.in
authors: Amit K
authors: AK
authors: Chattopadhyay