ICTS:31598

Video URL

Variable range hopping in a nonequilibrium steady state

Variable range hopping in a nonequilibrium steady state

(2025). Variable range hopping in a nonequilibrium steady state. SciVideos. https://youtu.be/Pk-3mbpHirk

Variable range hopping in a nonequilibrium steady state. SciVideos, Apr. 23, 2025, https://youtu.be/Pk-3mbpHirk 

          @misc{ scivideos_ICTS:31598,
            doi = {},
            url = {https://youtu.be/Pk-3mbpHirk},
            author = {},
            keywords = {},
            language = {en},
            title = {Variable range hopping in a nonequilibrium steady state},
            publisher = {},
            year = {2025},
            month = {apr},
            note = {ICTS:31598 see, \url{https://scivideos.org/index.php/icts-tifr/31598}}
          }
Preeti Bhandari
Talk numberICTS:31598
Source RepositoryICTS-TIFR
Collection

Abstract

In this talk, I will present findings from our recent work (Phys. Rev. B 108, 024203 (2023)), where we propose a Monte Carlo simulation to understand electron transport in a non-equilibrium 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 roughly obeys the Fermi-Dirac statistics, with an effective temperature (Teff) greater than the bath temperature of the system (T). Teff is a function of T 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 of Teff > T. Additionally, the dominance of phononless hopping over phonon-assisted hopping is used to explain the hot electron model's relevance to the conductivity of the NESS state.