Density of states (DOS) for bilayer graphene under the effect of an electric field

Physicslad78

Hi all. Is there any place where I can check how to derive the DOS of bilayer graphene subject to an external field. I have got the Hamiltonian right and solved the eenrgies but then I am not sure how to obtain the DOS right..

Thanks

olgranpappy

Easiest thing to do is lorentzian broadened approximation.

pi*rho(E)~ sum_i g/((E-e_i)**2+g**2)

For some small g (the broadening), where e_i are the energies which you already have. If those are correct the dos should look correct, but I don't actually have a check for you, sorry. Also, apologies about the typesetting, I'm typing this on my phone. Cheers.

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Physicslad78	Density of states (DOS) for bilayer graphene under the effect of an electric field Tweet Hi all. Is there any place where I can check how to derive the DOS of bilayer graphene subject to an external field. I have got the Hamiltonian right and solved the eenrgies but then I am not sure how to obtain the DOS right.. Thanks

olgranpappy Recognitions: Homework Help	Easiest thing to do is lorentzian broadened approximation. pirho(E)~ sum_i g/((E-e_i)2+g*2) For some small g (the broadening), where e_i are the energies which you already have. If those are correct the dos should look correct, but I don't actually have a check for you, sorry. Also, apologies about the typesetting, I'm typing this on my phone. Cheers.