Kinetic Roughening in a Realistic Model of non-conserved Interface Ggrowth Articles uri icon

publication date

  • February 2009

international standard serial number (ISSN)

  • 1742-5468

abstract

  • We provide a quantitative picture of non-conserved interface growth from a diffusive field, placing special emphasis on two main issues, the range of validity of the effective small slopes (interfacial) theories and the interplay
    between the emergence of morphological instabilities in the aggregate dynamics,
    and its kinetic roughening properties. Taking for definiteness electrochemical
    deposition as our experimental field of reference, our theoretical approach
    makes use of two complementary approaches: interfacial effective equations and a
    phase-field formulation of the electrodeposition process. Both descriptions
    allow us to establish a close quantitative connection between theory and
    experiments. Moreover, we are able to correlate the anomalous scaling properties
    seen in some experiments with the failure of the small slope approximation, and
    to assess the effective re-emergence of standard kinetic roughening properties
    at very long times under appropriate experimental conditions.