Re: [QE-users] Too few bands

2024-02-16 Thread Laurent Pizzagalli
Use 'pw.x -nd 1'  to run your calculation I think that you should read the documentation... On 16/02/2024 13:00, wangzongyi via users wrote: Dear all Thank you for your help, after revise my scf.in file, I am facing another problem, the program told me that I have too few bands: Error in rout

Re: [QE-users] Si.scf

2024-02-16 Thread Laurent Pizzagalli
Dear ??? I believe you should write "ATOMIC_POSITIONS alat"  instead of "ATOMIC_POSITIONS(alat)" HTH, L. On 16/02/2024 10:35, wangzongyi via users wrote: Dear all I am new to QE, I have just tried to test my first calculation file by using QE6.6. However, the program broke down, I don't w

Re: [QE-users] SCF convergence issue after first ionic step

2023-12-19 Thread Laurent Pizzagalli
ntia, I-80126, Napoli, Italy e-mail: giovanni.cant...@spin.cnr.it <mailto:giovanni.cant...@spin.cnr.it> Phone: +39 081 676910 Skype contact: giocan74 ResearcherID: http://www.researcherid.com/rid/A-1951-2009 Web page: https://sites.google.com/view/giovanni-cantele/home Il giorno mar 19 dic 2023 alle

Re: [QE-users] A few questions about cell dynamics

2020-10-18 Thread laurent pizzagalli
Dear Andrii 1) you cannot make a direct comparison between your NEB computed barrier and the MD-estimated transition temperature. It is not possible (I believe) to extract an energy barrier from a single MD run. But you can make several runs at different temperatures, and extract the barrier

Re: [QE-users] Energy calculation

2020-01-15 Thread Laurent Pizzagalli
Well, maybe because in your first calculation you had two atoms, and 64 in the second one.You should try to see if multiplying -107.10 by 64/2 improve the comparison L. On 16/01/2020 06:23, Pooja Vyas wrote: Initially I had run my input script with ecut=100Ry and k-points= 11 11 11 1

Re: [QE-users] energy due to vacancy

2020-01-08 Thread Laurent Pizzagalli
Dear Pooja, you should first change the line "CELL_PARAMETERS (angstrom)" to "CELL_PARAMETERS (alat)" HTH, Laurent On 08/01/2020 12:57, Pooja Vyas wrote: Following is my input file. Since ibrav=0, I removed celldm and gave a run, but I face the following error: %%

Re: [QE-users] NEB calculation issue with 'fixed' atoms

2019-10-25 Thread Laurent Pizzagalli
set use_masses =  .true.  in the &path namelist and then specify fictitious masses,  something like 1 for atoms which are free to move and 1 for the fixed ones. hope it helps regards - Pietro On 21/10/19 10:08, Laurent Pizzagalli wrote: Dear all, I encountered a weird and unexpected beha

Re: [QE-users] NEB calculation issue with 'fixed' atoms

2019-10-25 Thread Laurent Pizzagalli
mething like 1 for atoms which are free to move and 1 for the fixed ones. hope it helps regards - Pietro On 21/10/19 10:08, Laurent Pizzagalli wrote: Dear all, I encountered a weird and unexpected behavior when running a NEB calculation with QE. In this calculation, several (boundary) at

[QE-users] NEB calculation issue with 'fixed' atoms

2019-10-21 Thread Laurent Pizzagalli
Dear all, I encountered a weird and unexpected behavior when running a NEB calculation with QE. In this calculation, several (boundary) atoms are fixed. All initial images were provided in the input file, with the required flags "1 1 1" for mobile and "0 0 0" for fixed atoms. However, during