Localization phenomena in models of ion-conducting glass formers

Horbach, Jürgen; Voigtmann, Thomas; Höfling, Felix; Franosch, Thomas

Localization phenomena in models of ion-conducting glass formers

Files

12889neu.pdf(1.06 MB)

Date

2010

Authors

Horbach, Jürgen

Voigtmann, Thomas

Höfling, Felix

Franosch, Thomas

Publication type

Journal article

Published in

The European Physical Journal Special Topics ; 189 (2010), 1. - pp. 141-145

Abstract

The mass transport in soft-sphere mixtures of small and big particles as well as in the disordered Lorentz gas (LG) model is studied using molecular dynamics (MD) computer simulations. The soft-sphere mixture shows anomalous small-particle diffusion signifying a localization transition separate from the big-particle glass transition. Switching off small-particle excluded volume constraints slows down the small-particle dynamics, as indicated by incoherent intermediate scattering functions. A comparison of logarithmic time derivatives of the mean-squared displacements reveals qualitative similarities between the localization transition in the soft-sphere mixture and its counterpart in the LG. Nevertheless, qualitative differences emphasize the need for further research elucidating the connection between both models.

Subject (DDC)

530 Physics

Cite This

ISO 690

HORBACH, Jürgen, Thomas VOIGTMANN, Felix HÖFLING, Thomas FRANOSCH, 2010. Localization phenomena in models of ion-conducting glass formers. In: The European Physical Journal Special Topics. 189(1), pp. 141-145. Available under: doi: 10.1140/epjst/e2010-01316-x

BibTex

@article{Horbach2010Local-4953,
  year={2010},
  doi={10.1140/epjst/e2010-01316-x},
  title={Localization phenomena in models of ion-conducting glass formers},
  number={1},
  volume={189},
  journal={The European Physical Journal Special Topics},
  pages={141--145},
  author={Horbach, Jürgen and Voigtmann, Thomas and Höfling, Felix and Franosch, Thomas}
}

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