Re: [Wien] SCF Convergence with mBJ

2014-12-07 Thread Muhammad Sajjad
Dear P. Bala Thank you for your suggestions. Dr. Muhammad Sajjad On Sun, Dec 7, 2014 at 3:51 PM, Peter Blaha wrote: > Looks as if he is still using PRATT with a small mixing. > > As I said before, update to wien2k_14.2 > > Am 07.12.2014 06:43, schrieb Muhammad Sajjad: > >> Dear F. Tran and P. Ba

Re: [Wien] SCF Convergence with mBJ

2014-12-06 Thread Peter Blaha
Looks as if he is still using PRATT with a small mixing. As I said before, update to wien2k_14.2 Am 07.12.2014 06:43, schrieb Muhammad Sajjad: Dear F. Tran and P. Bala The user Qaasim has some problem with his email and can not see your emails. I am posting on his behalf. The charge criteria

Re: [Wien] SCF Convergence with mBJ

2014-12-06 Thread Muhammad Sajjad
Dear F. Tran and P. Bala The user Qaasim has some problem with his email and can not see your emails. I am posting on his behalf. The charge criteria is used (runsp_lapw -cc 0.1 -in1new 2 -i 200) with Wirn2k 11 version. Analysis of parameter: The grep :DIS case.scf generates :DIS in SCFNi

Re: [Wien] SCF Convergence with mBJ

2014-12-05 Thread Peter Blaha
Are you using wien2k_14.x ??? Am 05.12.2014 18:20, schrieb Qasim Mahmood: Dear User Could you please let me know what changes we can make to converge our calculations with mBJ ( at50% doping). I have done almost all the steps that i know, like to change mixing factor, switch to MSRI from PRAT

Re: [Wien] SCF Convergence with mBJ

2014-12-05 Thread tran
Hi, Magnetic systems can be very difficult to converge and even more with mBJ. But, without knowing more details it's difficult to help you. Which criteria of convergence for energy (-ec) and charge (-cc) are you using? During how many iterations did you let the calculation running? You could als

[Wien] SCF Convergence with mBJ

2014-12-05 Thread Qasim Mahmood
Dear User Could you please let me know what changes we can make to converge our calculations with mBJ ( at50% doping). I have done almost all the steps that i know, like to change mixing factor, switch to MSRI from PRATT within 6 to 10 cycles, use dense k-mesh etc. My system is a magnetic ternary

Re: [Wien] SCF convergence

2013-09-27 Thread Luis Ogando
Dear Prof. Blaha (and others), Related to my previous messages, do you think that it would be useful to change the mBJ parameters in order to get the experimental gap for the bulk wurtzite InP with RKmax=5 and transfer them to the supercell keeping RKmax=5 ? It would not be the most elegant

Re: [Wien] SCF convergence

2013-09-26 Thread Luis Ogando
Dear Prof. Blaha, Thank you for your comments. I have reasons to change the default parameters and I would like to clarify some points: 1) All the structural parameters were taken from optimized WZ and ZB bulk InP structures using the PBE potential. 2) The increase in the number o K-points

Re: [Wien] SCF convergence

2013-09-25 Thread Peter Blaha
Reduce RKmax. It is ridiculous to start such a calculation with RKmax=9. Probably convergence was spoiled by the occurrence of "ghostbands". To do it right: Do a simple wurzite structure. Start with RKmax=5.5 (or even 5.0 ) (see http://www.wien2k.at/reg_user/faq/rkmax.html) and do: run_lapw

Re: [Wien] SCF convergence

2013-09-25 Thread Laurence Marks
It is unlikely that anyone will be able to help without the case.struct file (as a minimum). I suspect that you have something wrong with the structure, for instance inappropriate symmetry, distances, or similar. As a basic point, it is best to use the defaults unless you have a good reason (one is

[Wien] SCF convergence

2013-09-25 Thread Luis Ogando
Dear Wien2k community, We are trying do calculate the influence of zinc blend (ZB) stacking faults on InP (sp semiconductor) wurtzite (WZ) systems using Wien2k 13. Our first goal is to calculate the band gap change along the c-axis (perpendicular to the interface between the two phases), simila

[Wien] scf convergence problem of hematite slab

2008-04-22 Thread swati chaudhury
Dear all Wien users, I am in very common scf convergence problem with nonmagnetic hematite slab. Details of inputs are given below: 13 GGA, Cut-off = -9.0RmtKmax = 5.50, Global E-parameter = 0.30 Emin = -9.0, Emax = 2.5Mixing factor = 0.40 Gmax =14.0, K-points = 1 (2 2

[Wien] scf convergence problem of hematite slab

2008-04-22 Thread Laurence Marks
You did not go through all the steps of the initialization -- at the bottom of your struct file you have 0 symmetry elements. Go back and do it again. Use MSEC mixing which you have in 7.3 On Tue, Apr 22, 2008 at 7:44 AM, swati chaudhury wrote: > Dear all Wien users, > I am in very comm