Generalization of Fick's Law and Derivation of Interface Segregation Parameters Using Microscopic Atomic Movements

Using a microscopic picture of atomic movement we rederived the Fick's diffusion flux equation which naturally includes all types of drift causing terms (e.g. electrical drift, stress driven movement, and binding energy related effects). With a similar method, two-phase segregation transfer rate and three-phase segregation trapping/emission rates are also defined with measurable or calculable quantities.