[Wien] orb mom
Bhagawan Sahu
brsahu at physics.utexas.edu
Fri Jul 8 20:35:25 CEST 2005
Dear Prof. Blaha/WIEN2k users
with broadening parameter decreased to 0.0002 from 0.002 Ry in GAUSS
smearing method ( I decreased it as the system is an atom and
eigenvalues are discrete), I could get rid of the previous error
(error in FERMIG) for a Pt atom in a large box 28 bohr, 1-kpt GGA
RMT=2.8 bohr in the lapw2 step (first iteration).
The sequence followed is:
init_lapw
runsp_lapw -in1new 1 <---- no errors
save_lapw case_sp
initso_lapw (spin-polarized "yes" and accept the struct file here)
runsp_lapw -so -in1new 1 (in the same directory)<---- QTL-B error
here.
but I get the QTL-B error in the last step (first iteration).
The in1 file used in the first iteration of the last
step where the error occurs
(generated in runsp_lapw -in1new 1 step)
WFFIL (WFPRI, SUPWF)
8.00 10 4 (R-MT*K-MAX; MAX L IN WF, V-NMT
-.68914 5 0 global e-param with N other choices, napw
0 -0.689 0.000 CONT 1
0 -7.436 0.000 CONT 1
1 -0.689 0.000 CONT 1
1 -4.066 0.000 CONT 1
2 -0.396 0.000 CONT 1
K-VECTORS FROM UNIT:4 -9.0 2.5 emin/emax window
The original in1 file (used in runsp_lapw -in1new 1 step)
FFIL (WFPRI, SUPWF)
8.00 10 4 (R-MT*K-MAX; MAX L IN WF, V-NMT
0.30 5 0 (GLOBAL E-PARAMETER WITH n OTHER CHOICES, global
APW/LAPW)
0 0.30 0.000 CONT 1
0 -7.17 0.005 STOP 1
1 0.30 0.000 CONT 1
1 -3.53 0.005 STOP 1
2 0.30 0.010 CONT 1
K-VECTORS FROM UNIT:4 -9.0 2.5 emin/emax window
The Fermi energy in scf2up file :
:FER : F E R M I - ENERGY(GAUSS-.M.)= -0.60222
and the message at the end of scf2up file is:
QTL-B VALUE .EQ. 76.74122 in Band of energy -6.18642
Check for ghostbands or EIGENVALUES BELOW XX messages
Adjust your Energy-parameters or use -in1new switch,
check RMTs !!
NBAND in QTL-file: 18
1) I checked BAND 18 in case.helpup031 file:
BAND# 18 E= -0.60831 WEIGHT= 1.0000000
L= 0 0.00000 0.000 0.000 0.000 0.000 0.000
L= 1 0.00000 0.000 0.000 0.000 0.000 0.000
L= 2 7.44223 7.070 0.373 0.000 0.000 0
It seems no problem here as U-dot is below 7 for all l's,
the limit
set in the code.
2) and then I checked the same file for the eigenvalue at
which QTL-B appers:
BAND# 2 E= -6.18642 WEIGHT= 1.0000000
L= 0 99.79939 64.861 76.741 211.751 -63.165 -63.612
It is the s-band probably which is causing the problem.
In case.scf1up file:
ATOMIC SPHERE DEPENDENT PARAMETERS FOR ATOM Pt
OVERALL ENERGY PARAMETER IS -0.6891
OVERALL BASIS SET ON ATOM IS LAPW
E( 0)= -0.4320
APW+lo
E( 0)= -7.4690
LOCAL ORBITAL
E( 1)= -0.6890
APW+lo
E( 1)= -4.1090
LOCAL ORBITAL
E( 2)= -0.4610
APW+lo
and I donot know how to fix the problem by looking at
these numbers.
How to fix this problem by looking at these numbers in
item 2.
I read FAQ page for this error but that I could not
figure out how to fix it.
If case.struct file is needed, I can provide it.
sahu
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