EPW Forum

Dear developer In EPW, when both eig_read = .true. and lwfpt = .true. are enabled, an error occurs: task # 16 from setup_rotate_wavefunction : error # 1 symmetry equivalent k points have different energy. Use unfold_ksym = .false. However, there is no unfold_ksym keyword in EPW. How can this issue ...

You could check whether the parameter fsthick is large enough.

Dear Developer,

I can see many paper report the scattering rate for Intervalley and Intravalley using the EPW code, but i do not know how to obain it through

EPW, could you tell me how to revised the code, thank you very much.


Regards

Donglin Guo

Dear Developer， Can electronic thermal conductivity and Seebeck coefficient be calculated by EPW code in the future. Although the BoltzTraP code can do, the energy calculated by EPW and other DFT code is different. As a result, the electrical transport properties calculated by EPW are not consistent ...

Dear all,

How to produce the K point of the full Brillouin zone of the hexagonal structure.

Donglin Guo

I want to use the PAO projection in wannier, but i find the EPW 5.9 is not compatible with the latest wannier.

Dear Developer For n/p-type transport of graphene, i set "ncarrier = -1E15" or "ncarrier = 1E15" in epw.in file, but the final concentration is about 1E13 cm-2. This problem has puzzled me for a long time. I don 't know how to solve this problem. -- &inputepw prefix = 'graphene' amass(1) = 12.01078 ...

Dear develper I am very confused about the output of mobility _ nuq.fmt file. According to the equation mu ( alpha, beta ) = 1.0 / ( sum _ { nu q } T _ { nu q } ( alpha, beta ) ), when ( alpha, beta ) is ( 1,1 ), I sum all the results of nu and q, and the result is 3.07 * 10 ^ ( 12 ). According to ...

EPW v5.8
New features in EPW v.5.8 (12/2023):

Real part of the electron self-energy (bandgap renormalization) using Wannier function perturbation theory

i want to know how to do it , could you tell me, thank you very much.

I use the "dipole_sp" to calculate the transport of graphene, but i see the problem in epw2.out, i do not know how to solve it. =============== Temp Fermi Elec density Population SR Drift Elec mobility [K] [eV] [cm^-2] [e per cell] [cm^2/Vs ...