Re: [QE-users] Phonon calculation with DFT-D3 correction

2024-05-14 Thread Ghosh, Prasenjit
Alternatively, you can calculate using the frozen phonon method. Prasenjit IISER Pune From: "users" To: "users" Sent: Wednesday, May 15, 2024 3:49:18 AM Subject: Re: [QE-users] Phonon calculation with DFT-D3 correction ph.x currently does not support the three-bo

Re: [QE-users] Phonon calculation with DFT-D3 correction

2024-05-14 Thread Omar Ashour via users
ph.x currently does not support the three-body terms with the D3 dispersion correction. You can turn it off with the dftd3_threebody tag in pw.x, and follow the three step procedure you outlined in your email. If you want to include the three-body terms, you can use the supercell approach (e.g.,

[QE-users] Phonon calculation with DFT-D3 correction

2024-05-14 Thread Jing Lian Ng
Hello all, I am currently trying to perform phonon calculation with DFT-D3 correction. Based on what I read from d3hess.x documentation, I believe I can include dispersion effects on vibrational frequencies by: 1. Relax / Scf calculation 2. run d3hess.x 3. run ph.x However, I encounter