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- W1983397116 abstract "Transport of carriers in two-dimensional graphene at high electric fields is investigated by combining semianalytical and Monte Carlo methods. A semianalytical high-field transport model based on the high rate of optical phonon emission provides useful estimates of the saturation currents in graphene. For developing a more accurate picture, the nonequilibrium (hot) phonon effect and the role of electron-electron scattering were studied using Monte Carlo simulations. Monte Carlo simulations indicate that the hot phonon effect plays a dominant role in current saturation, and electron-electron scattering strongly thermalizes the hot carrier population in graphene. We also find that electron-electron scattering removes negative differential resistance in graphene. Transient phenomenon such as velocity overshoot can be used to speed up graphene-based high-speed electronic devices by shrinking the channel length below 80 nm if electrostatic control can be exercised in the absence of a band gap." @default.
- W1983397116 created "2016-06-24" @default.
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- W1983397116 date "2011-09-30" @default.
- W1983397116 modified "2023-10-06" @default.
- W1983397116 title "High-field transport in two-dimensional graphene" @default.
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- W1983397116 doi "https://doi.org/10.1103/physrevb.84.125450" @default.
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