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Electron Transport in Granular Metals

Alexander Altland·Leonid I. Glazman·Alex Kamenev
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Abstract

We consider thermodynamic and transport properties of a long granular array with strongly connected grains (inter-grain conductance g>>1.) We find that the system exhibits activated behavior of conductance and thermodynamic density of states ~exp(-T*/T) where the gap, T*, is parametrically larger than the energy at which conventional perturbation theory breaks down. The scale T* represents energy needed to create a long single-electron charge soliton propagating through the array.

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Alexander Altland, Leonid I. Glazman, Alex Kamenev. 2003-05-12. Electron Transport in Granular Metals. https://doi.org/10.1103/physrevlett.92.026801

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