Search found 4 matches
- Fri Oct 04, 2019 5:54 am
- Forum: General discussion
- Topic: Warning: too many iterations in bisection
- Replies: 0
- Views: 7022
Warning: too many iterations in bisection
Dear sponce, I use qe-6.4.0 package and the corresponding program EPW v.5.1.0 to start my work for calculating mobility. After Having done unfolding part, I set int_mob = .true. and carrier = .true. in the epw.in file to get the mobility. However, I find when the value of the parameter ncarrier is ...
- Tue Mar 06, 2018 8:50 am
- Forum: Electron-phonon
- Topic: A problem when ecutrho was used
- Replies: 2
- Views: 20554
A problem when ecutrho was used
Dear all, I encountered a problem when I was running the EPW code by using USPP: If only ecutwfc was defined or ecutwfc and ecutrho were both defined (ecutrho is small) in SCF and NSCF, and then the EPW ran well; however, the EPW would always keep at follow status and couldnt run to next step if ...
- Wed Jan 17, 2018 4:37 am
- Forum: General discussion
- Topic: Phonon Wannierization
- Replies: 1
- Views: 3781
Re: Phonon Wannierization
maybe you could change the frozwindow or nbnd to get better spread
- Fri Jan 12, 2018 10:12 am
- Forum: Electron-phonon
- Topic: negative phonon frequencies near q=0
- Replies: 1
- Views: 5461
negative phonon frequencies near q=0
Dear Dr. Samuel Ponc Thanks for your reply. According to your suggestion, we recalculated the EPW-interpolated phonon dispersion by QE-6.2.1 and EPW-4.3.1 with asr_typ = crystal, however, there is no difference between crystal and simple , and the phonon frequencies are still negative as well as no ...