On chain models for contact electrification

Javier E. Hasbun, Lok C. Lew Yan Voon, Morten Willatzen

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    An exact analytical model of charge dynamics for a chain of atoms with asymmetric hopping terms is presented. Analytic and numeric results are shown to give rise to similar dynamics in both the absence and presence of electron interactions. The chain model is further extended to the case of two atoms per cell (a perfect alloy system). This extension is further applied to contact electrification between two different atomic chains and the effect of increasing the magnitude of the contact transfer matrix element is studied.
    Original languageEnglish
    Article number135501
    JournalJournal of Physics Condensed Matter
    Number of pages14
    Publication statusPublished - 2022


    • Atomic chain
    • Charge dynamics
    • Contact electrification
    • Tight-binding model


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