Abstract
We present a calculation of electron-impurity scattering rate as a function of quasi particle energy(ϵ) for doped bilayer graphene (BLG) at zero temperature. The computed scattering rate of BLG first declines with ϵ and then increases after reaching to a dip at around Fermi energy (ϵf). It is also found that scattering rate for BLG enhance on increasing impurity concentration. Our results suggest that electron-impurity scattering process in BLG is very different from those in single layer graphene and two dimensional electron gas (2DEG). Unlike single layer graphene, electron-impurity scattering rate of BLG goes to a constant value for ϵ → 0 for given values of N.
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