[QE-users] [Webinar] The many roles of computational assistance and AI in the discovery of new molecules

2024-01-24 Thread Minkyu Park
Dear colleagues, this is Minkyu Park from Virtual Lab. I delight to announce that have interesting webinar with *Prof. Connor W. Coley from MIT* on Materials Square. Please feel free to join & discuss more details! *Title : * The many roles of computational assistance and AI in the discovery of

[QE-users] hp.x Error in routine cdiaghg (270): problems computing cholesky

2024-01-24 Thread Simon Imanuel Rombauer
Dear QE users, for some time I am trying to find suitable DFT+U+V parameters for orthorhombic LaVO3 band structure. I was limited with with computational resources so I tried to manually tune the parameters to match experimental band gab. This was very tedious and most calculations did not

[QE-users] Hubbard U Parameters in pmw.x

2024-01-24 Thread Yin-Ying Ting
Dear Quantum Espresso Community, I am currently working with the poormanwannier.x (pmw.x) as demonstrated in example05 of PP. In this example, the procedure begins with a self-consistent field (SCF) calculation without the incorporation of Wannier functions (wf) and with very small Hubbard

[QE-users] Issues with vc-relax for a slab

2024-01-24 Thread Anupriya Nyayban
Dear users and experts, I have considered a (311) plane of 2 layers of ZnFe2O4 structure. The attached input file is for the vc-relax calculation. The following is how the energy changes after each optimization step. At the last optimization step ( Energy error = 1.5E+00 Ry), scf didn't converge

Re: [QE-users] Convergence problem with hydroxide

2024-01-24 Thread Giuseppe Mattioli
Dear Jeremy It is not a technical problem, it is a theoretical one. negative ions in gas phase generally yield unbound excess electrons leading to weird results when computed at the GGA level of theory. Of course water stabilizes OH-, and also exact exchange if you use a hybrid

[QE-users] Convergence problem with hydroxide

2024-01-24 Thread RABONE Jeremy
Hello, I have just started a project using QE, and have a question regarding a hydroxide ion in a box. When I first tried to do a relaxation with conv_thr = 1.0d-8, it started off like it was going to converge and then suddenly the convergence went all over the place. Changing all of the