[Pw_forum] wannier_new.f90

2017-10-16 Thread nazari
Dear All, would you please let me know the relationship between ningx ( "INTEGER, PARAMETER :: ningx = 6 ! max number of trial wavefunction ingredien" in the following f90 file ../../qe-6.1/Modules/wannier_new.f90 with the number of wannier function in the wannier_ham.x input file. Thank you

Re: [Pw_forum] problem with final scf calculation with vc-relax

2017-10-16 Thread Leonid Kahle
Thanks a lot for your comment, Ilya. It was precisely my point that it is "typical for the variable-cell optimization". But it is great to have confirmation that the final structure can be reused without any problems. Best,     Leonid On 10/15/2017 04:41 PM, Ilya Ryabinkin wrote: > Hi Leonid

[Pw_forum] Regarding the mean amplitude of the atomic vibration of a crystal

2017-10-16 Thread mohaddeseh abbasnejad
Dear all, I was wondering if you would help me on how I can calculate the mean amplitude of the atomic vibration of a crystal by knowing the mean square displacement of its atoms separately. Any suggestion will be appreciated. Regards, Mohaddeseh -- ---

[Pw_forum] Regarding dispersion interaction

2017-10-16 Thread mohaddeseh abbasnejad
Dear all, Actually, the dispersion interactions are important in light metal ionic compounds. My question is that when it is possible to ignore this and rely on DFT results without taking it into consideration. On other words, I was wondering if you would clarify that which properties are independ

[Pw_forum] Regarding zero point energy

2017-10-16 Thread mohaddeseh abbasnejad
Dear all, I was wondering if you would help me on the following questions: 1- How is it plausible to discuss quantitatively the magnitude of the zero point energy of the system? 2- How is it possible to have an estimation of its value without calculating it? Thanks in advance. Regards, Mohaddeseh

[Pw_forum] Regarding zero point energy

2017-10-16 Thread mohaddeseh abbasnejad
Dear all, I was wondering if you would help me on the following questions: 1- How is it plausible to discuss quantitatively the magnitude of the zero point energy of the system? 2- How is it possible to have an estimation of its value without calculating it? Thanks in advance. Regards, Mohaddeseh