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Faculty of Science, University of Sarajevo , Sarajevo , Bosnia and Herzegovina
Faculty of Science, University of Sarajevo , Sarajevo , Bosnia and Herzegovina
Faculty of Science, University of Sarajevo , Sarajevo , Bosnia and Herzegovina
Faculty of Science, University of Sarajevo , Sarajevo , Bosnia and Herzegovina
Faculty of Science, University of Sarajevo , Sarajevo , Bosnia and Herzegovina
Faculty of Electrical Engineering, University of Sarajevo , Sarajevo , Bosnia and Herzegovina
Faculty of Engineering and Natural Sciences, University of Zenica , Zenica , Bosnia and Herzegovina
Metallic materials in granular packings show different electrical properties from their bulk
counterparts. In this paper, we investigate the temporal evolution of the electrical conductivity of
granular metals. We use metallic beads arranged in different one-, two- and three-dimensional
ensembles through which different constant currents are injected. The conductivity behavior in all
three types of systems is qualitatively similar. The results show the rise of conductivity which is
more pronounced in the earlier stages of the time evolution. We investigate the influence of the
dimensionality, the number of beads, and the values of the injected currents on the conductivity
behavior
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