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

Zerihun G. Workineh and Mulugeta Bekele

Physica A: Statistical Mechanics and its Applications, 2018, vol. 510, issue C, 691-701

Abstract: 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.

Keywords: Vacancy diffusion; Binary alloy; Six-jump cycle; Random walk on network; Mean first passage time (search for similar items in EconPapers)
Date: 2018
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:510:y:2018:i:c:p:691-701

DOI: 10.1016/j.physa.2018.07.026

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