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E-fermi changes a lot !

Posted: Wed Jun 06, 2012 1:52 am
by prithwish
Hi, I am doing a calculation for Y2O3 for plotting the band-structure. For this, first I have done a SCF calculationwhich gives the "E-fermi" ~ 1.5 eV.

Using the CHGCAR and changing the KPOINTS file to line-mode, I did a bandstructure calculation which gives "E-fermi" as 5.28 eV. This surprising !

I am posting my INCAR and KPOINTS file here: (see below)

May anyone help to locate the reason for such weird thing ?

Best regards,

--

Prithwish


----------
KPOINTS
----------
k-points along high-symmetry lines
10
Line-mode
rec
0.0 0.0 0.0 ! Gamma
0.5 -0.5 0.5 ! H

0.5 -0.5 0.5 ! H
0.0 0.0 0.5 ! N

0.0 0.0 0.5 ! N
0.25 0.25 0.25 !P

0.25 0.25 0.25 ! P
0.0 0.0 0.0 ! Gamma

0.0 0.0 0.0 ! Gamma
0.0 0.0 0.5 ! N

----------
INCAR
----------
System = Y2O3

ISMEAR = 0
SIGMA = 0.05
PREC = High
ENCUT = 500

EDIFF = 1E-05
EDIFFG = -1E-2
ICHARG = 11

INIWAV = 1
ISTART = 0
NELM = 120

NELMDL = -12

LREAL = Auto

IALGO = 38
NSIM = 4
ISPIN = 2

LORBIT = 11

LWAVE = .FALSE. ! Print WAVCAR if .TRUE.
LCHARG = .TRUE. ! Print CHGCAR if .TRUE.
LVTOT = .TRUE.

ADDGRID = .TRUE. ! Set .TRUE. for PAW

Ionic relaxation
NSW = 0
ISIF = 2

NFREE = 10
POTIM = 0.5

#Parallel Options
LPLANE = .TRUE.
LSCALU = .FALSE.
NPAR = 1
NSIM = 4
!NBANDS = 1400
VOSKOWN = 1



:! :!

Re: E-fermi changes a lot !

Posted: Thu Sep 12, 2024 8:11 am
by support_vasp

Hi,

We're sorry that we didn’t answer your question. This does not live up to the quality of support that we aim to provide. The team has since expanded. If we can still help with your problem, please ask again in a new post, linking to this one, and we will answer as quickly as possible.

Best wishes,

VASP