|About this Abstract
||2010 TMS Annual Meeting & Exhibition
||Computational Thermodynamics and Kinetics
||Kinetic Monte Carlo Study of Sputter-induced Morphological Patterns in Alloy Surfaces
||Bharathi Madurai Srinivasan, Ramanarayan Hariharaputran
|On-Site Speaker (Planned)
||Bharathi Madurai Srinivasan
Ion beam sputtering of surfaces gives rise to interesting nanopatterns. In single phase systems, these patterns form as a result of the competition between erosion by ion bombardment and surface diffusion. In the case of alloys, interesting patterns characterized by variation in both surface height and composition are formed because of the composition-dependence of surface diffusion and sputter yield.
To study these rich patterns formed on alloy surfaces we have used Kinetic Monte Carlo method. In our study we find that for binary alloys the morphological patterns are accompanied by compostional segregation. We have characterized these patterns as a function of parameters such as flux of the ion beam, temperature, sputter yields and diffusivities of the two species and we present these results in this talk.
||Definite: A CD-only volume