Yambo Community Forum

Dear Zhou

1) try to add -V gen to yambo when you generate the input
a new option wiil appear

ElecTemp= 0.000000 eV # Electronic Temperature

the electronic temperature. Because you are treating a semimetal try to set a finite electric temperature,
as the smearing the DFT calculations.

2) If you can try to increase the number of k-points, and see if the result change

3) how do you get the bands close to k? did you interpolate them? it can be an interpolation error?

4) perform a calculation in COHSEX approximation, -g n -p c, to check if the problem is due to the plasmon-pole.

best regards
claudio

Yes, I plot the bandstructure by interpolating them. Is not a good way to get the bandstucture?

Dear ljzhou86,
yes it is a good way, unfortunately there was a bug in the interpolation that we solved recently: have a look at this post You can update your source and look if it solve your problem.

Best,

Daniele

Yes, this problem has been resolved after updating my source according this post viewtopic.php?f=9&t=497.