Variable range hopping in a nonequilibrium steady state

Preeti Bhandari, Vikas Malik, Moshe Schechter

פרסום מחקרי: פרסום בכתב עתמאמרביקורת עמיתים

תקציר

We propose a Monte Carlo simulation to understand electron transport in a nonequilibrium steady state (NESS) for the lattice Coulomb Glass model, created by continuous excitation of single electrons to high energies followed by relaxation of the system. Around the Fermi level, the NESS state approximately obeys the Fermi-Dirac statistics, with an effective temperature Formula Presented greater than the system's bath temperature Formula Presented. Formula Presented is a function of Formula Presented and the rate of photon absorption by the system. Furthermore, we find that the change in conductivity is only a function of relaxation times and is almost independent of the bath temperature. Our results indicate that the conductivity of the NESS state can still be characterized by the Efros-Shklovskii law with an effective temperature Formula Presented. Additionally, the dominance of phononless hopping over phonon-assisted hopping is used to explain the relevance of the hot electron model to the conductivity of the NESS state.

שפה מקוריתאנגלית אמריקאית
מספר המאמר024203
כתב עתPhysical Review B
כרך108
מספר גיליון2
מזהי עצם דיגיטלי (DOIs)
סטטוס פרסוםפורסם - 1 יולי 2023

ASJC Scopus subject areas

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  • ???subjectarea.asjc.3100.3104???

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