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Effects Of Localized Trap-States And Corrugation On Charge Transport In Graphene Nanoribbons, Oleksiy Roslyak, Upali Aparajita, Godfrey Gumbs, Danhong Huang
Effects Of Localized Trap-States And Corrugation On Charge Transport In Graphene Nanoribbons, Oleksiy Roslyak, Upali Aparajita, Godfrey Gumbs, Danhong Huang
Publications and Research
We investigate effects of the electron traps on adiabatic charge transport in graphene nanoribbons under a longitudinal surface acoustic wave (SAW) potential. Due to the weak SAW potential and strong transverse confinement of nanoribbons, minibands of sliding tunnel-coupled quantum dots are formed. Therefore, as the chemical potential passes through minigaps, quantized adiabatic charge transport is expected to occur. We analyze the condition for a closed minigap, thereby destroying the current quantization in a nanoribbon. We present numerical calculations showing the localized energy states within minigaps. Additionally, we compare the results with the minibands of corrugated nanoribbons.