All Questions
6 questions
5
votes
2
answers
176
views
Why my Relax calculation is not stopping?
I am conducting a relaxation calculation on a mono-layer of MoS2 with a 3x3x1 super-cell, where one Molybdenum (Mo) atom is substituted with a Palladium (Pd) atom defect. However, the calculation is ...
2
votes
1
answer
98
views
vc-relax calculation on two-dimensional slab
Is performing only a relaxation calculation (calculation='relax') sufficient for geometrical optimization in conducting a density functional theory (DFT) study of ...
5
votes
1
answer
263
views
How to determine energy convergence threshold and force convergence threshold in Quantum Espresso [closed]
In the computational investigation of $MoS_2$ monolayer for its catalytic activity in the hydrogen evolution reaction, how are parameters such as forc_conv_thr and <...
7
votes
1
answer
297
views
Convergence testing in DFT calculation
I have done convergence testing for MoS2 (2x2x1) monolayer structure in the following order:
ecutwfc
ecutrho
k_points
After setting these values, I would like to include vdW correction to the system ...
3
votes
1
answer
184
views
How to Model Antiferromagnetic NiO p-type semiconductor?
I'm a beginner in DFT and I want to study the properties of NiO and doped-NiO materials using Quantum ESPRESSO.I found in the internet that I should introduce the spin magnetization in the Input file (...
6
votes
2
answers
610
views
Files for molecules to Quantum ESPRESSO
where can I find a file for molecules e.g: H2
For solids, I am using AMCSD (American Mineralogist Crystal Structure Database), but where can I find molecule files?