Re: [QE-users] Problem with PBE0 calculation

2023-01-11 Thread Giuseppe Mattioli
Dear Rameswar Bhattacharjee I don't know if this is the actual source of error, but I strongly recommend to use norm-conserving pseudopotentials when performing EXX calculations. You have generally no speed-up with US because ecutrho is more or less often the same, and in your case you are

[QE-users] Convergence problem in alloy

2023-01-11 Thread kh_f_69 via users
Hi I am making a biometallic surface to absorb an organic molecule, first I opt only the biometallic slab structure and then adsorb the molecule on it. My metals are platinum and tin, but unfortunately, when relaxing the adsorption structure, the tin atoms are separated from the composition, and

Re: [QE-users] Problem with PBE0 calculation

2023-01-11 Thread Rameswar Bhattacharjee
Hi Giuseppe, Thank you very much for your detailed reply. I followed the instructions and was able to complete the SCF calculation. Also, I did an NSCF calculation using the same combination you suggested as a pre-step to perform the band calculation. My ultimate aim is to get the band gap using a