Re: [QE-users] force constant

2019-10-08 Thread David Kostov
Dear experts and developers I am writing regarding my question again. As I went through the mailing list I noticed that, people have had this issue in several places before, but no one has get an answer. Can someone please let me know whether it is not possible to get the normal format (As

Re: [QE-users] Scaling factor for

2019-10-08 Thread Matic
Hi Siebe, As far as I could infer from the guide alone, that seems to be true. However, I don't understand from the documentation how the A tag is then used if the CELL_PARAMETERS section is provided. From the examples I have tried out, the A tag seems to be simply incompatible with

Re: [QE-users] Scaling factor for

2019-10-08 Thread Siebe Vanlommel
Dear Willem and others, As far as I could infer from the guide alone, that seems to be true. However, I don't understand from the documentation how the A tag is then used if the CELL_PARAMETERS section is provided. From the examples I have tried out, the A tag seems to be simply incompatible

Re: [QE-users] Scaling factor for

2019-10-08 Thread Offermans Willem
Dear Siebe and Quantum Espresso friends, According to me, the tag A in has a different meaning. See: https://www.quantum-espresso.org/Doc/INPUT_PW.html#idm231 Met vriendelijke groeten, Mit freundlichen Grüßen, With kind regards, Willem Offermans Researcher Electrocatalysis SCT VITO NV |

[QE-users] Scaling factor for

2019-10-08 Thread Siebe Vanlommel
Hi all, I am trying to figure out whether there is a way to scale all three unit cell vectors at once in QE using pw.x. In my input file, I am using the CELL_PARAMETERS card (in units of Angstrom) to specify a unit cell. This

Re: [QE-users] Negative dr2 error in DFT+U

2019-10-08 Thread Timrov Iurii
Dear Dominik, This is the first time that I hear about negative Ueff. What I would do, I would just compute Ueff from first principles using the hp.x code of Quantum ESPRESSO: Phys. Rev. B 98, 085127 (2018). Best regards, Iurii P.S.: Please do not forget to add your affiliation when posting

[QE-users] Negative dr2 error in DFT+U

2019-10-08 Thread Dominik Gresch
Dear QE community,   I am trying to run DFT+U calculations (lda_plus_u_kind=0) with a negative Ueff = U - J. However, this frequently results in the following error being raised: %% Error in routine mix_rho (1):