Re: [Wien] Why the GAP appeared in DOS plot is lower than the GAP obtained during "Analysis"

2020-04-23 Thread Tran, Fabien
You have to make sure that you are comparing the gaps from Analysis and DOS for the same functional. And if you create a new k-mesh for DOS, then you need to execute lapw1 with -orb option (x lapw1 -orb -up/dn). From: Wien on behalf of shamik chakrabarti

Re: [Wien] Why the GAP appeared in DOS plot is lower than the GAP obtained during "Analysis"

2020-04-23 Thread shamik chakrabarti
I have used 38 k-points for simulating 28 atom cell (LiNiMO4 type material). I have used GGA+U initially & then TB-mbj as a perturbation latter. with regards, On Thu, 23 Apr 2020 at 15:19, Tran, Fabien wrote: > Either you k-mesh during SCF was very coarse or you made a mistake during > in the

Re: [Wien] Why the GAP appeared in DOS plot is lower than the GAP obtained during "Analysis"

2020-04-23 Thread Tran, Fabien
Either you k-mesh during SCF was very coarse or you made a mistake during in the procedure to make DOS. You have to provide more details: which functional did you use (PBE , PBE+U, ...), which system, which k-meshes, etc. From: Wien on behalf of shamik

Re: [Wien] Why the GAP appeared in DOS plot is lower than the GAP obtained during "Analysis"

2020-04-23 Thread shamik chakrabarti
Dear Dr. Tran, The gap appeared is 4.606 eV in the "Analysis" while the plot shows 3.62 eV. with regards On Thu, 23 Apr 2020 at 13:43, Tran, Fabien wrote: > The gap shown in Analysis is :GAP in case.scf. If a different k-mesh (than > the one used during the SCF calculation) is

Re: [Wien] Why the GAP appeared in DOS plot is lower than the GAP obtained during "Analysis"

2020-04-23 Thread Pavel Ondračka
Another option is that you applied some broadening to your DOS, the gap in the DOS than would look smaller. Best regards Pavel On Thu, 2020-04-23 at 08:12 +, Tran, Fabien wrote: > The gap shown in Analysis is :GAP in case.scf. If a different k-mesh > (than the one used during the SCF

Re: [Wien] Why the GAP appeared in DOS plot is lower than the GAP obtained during "Analysis"

2020-04-23 Thread Tran, Fabien
The gap shown in Analysis is :GAP in case.scf. If a different k-mesh (than the one used during the SCF calculation) is used for generating the DOS, then there may be a difference. Typically, one should increase the k-mesh for DOS. What is the difference between the gaps in Analysis and DOS in

[Wien] Why the GAP appeared in DOS plot is lower than the GAP obtained during "Analysis"

2020-04-23 Thread shamik chakrabarti
Dear Wien2k users, We have seen that the GAP appeared in DOS plot is lower than the GAP obtained during "Analysis". Why it is so? what is the meaning of GAP appeared during "Analysis" Looking forward to your reply in this regard. with regards, -- Dr. Shamik