Vacancy mediated diffusion time in two dimensional ordered binary alloy. Six-jump cycle model

In this presentation one of the diffusion characteristics, the mean first passage time, MFPT, in six-jump vacancy cycle has been investigated. Primarily, MFPT is calculated in terms of local jump probabilities, p and q by making use of random walk on network technique. Latter on, those local jump probabilities are calculated as the functions of activation (barrier, E1 and E2) energy and temperature by applying theory of stochastic processes. More precisely, the variation of MFPT as the function of inverse temperature at several values of barrier ratios (E2∕E1) is well addressed.