Calculation scattering time if E-Field (Ez) is applied on 2D

[erneelgupta]

Dear Developers ,
I writing this query for the calculation method of scattering rate (or scattering time ) if a perpendicular E-field is applied to the mono layer 2D sheet (e. g. Graphene, Silicene and Germanene). Just for the kind info., I am aware of with following calculation:
1. I have done calculation of scattering rate without E-filed, with the calculation of "Self energy of electron" of said mono layer.
2. Till now I also have done scf calculation and band structure calculation using HSE06 + W90 (with the perpendicular E-field of the mono layer)