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Ionic diffusion on a lattice: Effects of the order-disorder transition on the dynamics of non-equilibrium systems

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Abstract:

We examine the behaviour of the concentration profiles of particles with repulsive interactions diffusing on a host lattice. At low temperature, the diffusion process is strongly influenced by the presence of ordered domains. We use mean field equations and Monte-Carlo simulations to describe the various effects which influence the kinetic behaviour. An effective diffusion coefficient is determined analytically and is compared with the simulations. Finite gradient effects on the ordered domains and on the diffusion are discussed. The kinetics studied is relevant for superionic conductors, for intercalation and also for the diffusion of particles adsorbed on a substrate.

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Authors and Affiliations

  1. Laboratoire de Physique de la Matigrave;re Condensée, Université Hassan II, Faculté des Sciences Ben M'Sik, Casablanca, Morocco

    R. Nassif, Y. Boughaleb & A. Hekkouri

  2. Laboratoire de Physique de la Matigrave;re Condensée, École Polytechnique, 91128, Palaiseau, France

    J.F. Gouyet & M. Kolb

Authors
  1. R. Nassif
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  2. Y. Boughaleb
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  3. A. Hekkouri
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  4. J.F. Gouyet
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  5. M. Kolb
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Additional information

Received: 26 June 1997 / Revised: 18 September 1997 / Accepted: 10 November 1997

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Nassif, R., Boughaleb, Y., Hekkouri, A. et al. Ionic diffusion on a lattice: Effects of the order-disorder transition on the dynamics of non-equilibrium systems. Eur. Phys. J. B 1, 453–464 (1998). https://doi.org/10.1007/s100510050208

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  • DOI: https://doi.org/10.1007/s100510050208

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