Title of Publication Edited by TMS (The Minerals, Metals & Materials Society), Year Phase-field modeling of nanoscale island dynamics

We present a phase-field model to simulate the dynamics of a perturbed circular island dur-ing epitaxial growth. Surface diffusion and a far-field flux are incorporated in the model. Moreover, a modified free energy function together with a correction to the initial phase variable profile is given to efficiently capture the morphological evolution when a large de-position flux is imposed. To test the algorithm, we present simulations involving both stable and unstable growth