Adiabatic quantum pump in a zigzag graphene nanoribbon junction*
Zhang Lin
       
The I LR versus ħω in a ZGNR p–n junction. The Fermi level is set as E F = 0.05 eV, The other parameters are the same as that in Fig. 2 . The inner panel describes the charge current versus ħω around the critical frequency ħω c = 0.05 eV.