Phase-field modeling of nanoscale island dynamics
نویسندگان
چکیده
We present a phase-field model to simulate the dynamics of a perturbed circular island during 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 deposition flux is imposed. To test the algorithm, we present simulations involving both stable and unstable growth.
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تاریخ انتشار 2007