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<DIV><FONT face=Arial size=2>Dear M. Xia <BR> I don't
have much experience in slab calculations, but in the case of bulk calculations
I observe similar problems regarding this type of error (ghost bands), just
because of the optimization of the atomic coordinates.
<BR> This is why I guess that your problem is a common one,
since you are moving from a bulk to a slab calculation, and you will have
changes in the values of the linearization energies.
<BR> According to the error descriptions in the file
lapw2.error, you must choose a better energy parameters in the case.in1(c) file.
Or, If you want to do that in a automatically, you should add the "-in1new x"
option to your normal executing procedure e.g. "runsp -cc 0.0001 -so
-in1new 3 ...." <BR> I repeat, I dont' have much
experience in slabs calculations, but this is what I can tell you.
<BR>Best regards <BR>Ricardo</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV>-------------------------------------------------------------------------<BR>-----
Dr. Ricardo Faccio<BR> <BR> Mail: Cryssmat-Lab., Cátedra de Física,
DETEMA<BR> Facultad de Química, Universidad de la
República<BR> Av. Gral. Flores 2124, C.C.
1157<BR> C.P. 11800, Montevideo,
Uruguay.<BR> E-mail: <A
href="mailto:rfaccio@fq.edu.uy">rfaccio@fq.edu.uy</A><BR> Phone: 598 2
9241860 Int.
109<BR>
598 2 9290705<BR> Fax: 598 2 9241906<BR>
Web: <A
href="http://cryssmat.fq.edu.uy/ricardo/ricardo.htm">http://cryssmat.fq.edu.uy/ricardo/ricardo.htm</A></DIV>
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<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=xiay@princeton.edu href="mailto:xiay@princeton.edu">Matthew Xia</A>
</DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A
title=wien@zeus.theochem.tuwien.ac.at
href="mailto:wien@zeus.theochem.tuwien.ac.at">A Mailing list for WIEN2k
users</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Sunday, December 09, 2007 6:01
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> [Wien] Error Calculating Bi
Surface Bands</DIV>
<DIV><BR></DIV>Hello Wien Users,<BR> Many thanks first to the forum for
providing guidance to the wien package. I am interested in calculating the
surface state of Bi, using a 1x1x10 supercell (10 bilayers) with a 5x5x1
k-mesh. After initializing the calculation and accepting the geometry
offered by nn, I ran the scf with spin orbit coupling. The calculation ran for
21 iterations, until at the end of the 22nd the calculation stopped:
<BR><I>cycle 22 (Fri Dec 7 14:45:49 EST 2007) (19/19 to go)<BR><BR>>
lapw0 (14:45:49) 228.126u 1.693s 3:56.95 96.9% 0+0k 0+0io
24pf+0w<BR>> lapw1 -c (14:49:47) 9935.601u 146.192s
7:40:52.37 36.4% 0+0k 0+0io 640167pf+0w <BR>> lapwso -c
(22:30:44) 2084.313u 31.731s 1:26:14.72 40.8% 0+0k 0+0io 117209pf+0w<BR>>
lapw2 -c -so (23:57:03) 1310.015u 166.919s 31:28.94 78.1% 0+0k
0+0io 4578pf+0w<BR><BR>> stop error<BR></I><BR>Tha lapw2.error
reads:<I> 'l2main' - QTL-B.GT.15., Ghostbands, check scf files</I><BR><BR>and
the end of scf2 file reads: <I>QTL-B VALUE .EQ. **********
in Band of energy -4.74977 ATOM= 44 L=
0<BR> Check for ghostbands or EIGENVALUES BELOW XX messages
<BR> Adjust your Energy-parameters or use -in1new switch, check
RMTs !!!<BR>:WARN : QTL-B value eq.******* in Band of energy
-4.74977 ATOM= 44 L= 0<BR>:WARN :
You should change the E-parameter in case.in1 or use -in1new switch
<BR><BR></I>I have used the same RMT values and energy-parameters before
to do bulk calculations with the Bi unit cell, and that calculation has ran
well without any problems. My in1 file
reads:<BR><I>WFFIL (WFPRI, SUPWF)
<BR> 7.00 10 4
(R-MT*K-MAX; MAX L IN WF, V-NMT<BR> 0.30 5
0 (GLOBAL E-PARAMETER WITH n OTHER CHOICES,
global APW/LAPW)<BR> 2 -1.54
0.010 CONT...<BR>0.000 CONT 1<BR>K-VECTORS FROM UNIT:4
-9.0 3.0 519
emin/emax/nband #red<BR></I>And my inso file
reads:<BR><I>WFFIL<BR> 4 1
0
llmax,ipr,kpot <BR> -10.0000
1.50000 emin,emax
(output energy window)<BR> 1. 1.
1.
direction of magnetization (lattice vectors)
<BR> 0
number of atoms for which RLO is added<BR> 0
-4.97 0.005
atom number,e-lo,de (case.in1), repeat NX times<BR> 0 0 0 0
0
number of atoms for which SO is switch off; atoms <BR><BR></I>The SCF file
reads, for the last iteration as:<BR>
---------<BR><I>:ITE001: 1.
ITERATION<BR> <BR>:NATO : 60
INDEPENDEND AND 60 TOTAL ATOMS IN
UNITCELL<BR>
LATTICE
= H <BR>:POT : POTENTIAL OPTION 13<BR>:LAT
: LATTICE CONSTANTS= 8.56991 8.56991227.25225<BR>:VOL : UNIT
CELL VOLUME = 14454.10292<BR>
MODE OF CALCULATION IS =
RELA<BR> NON-SPINPOLARIZED CALCULATION
<BR>:IFFT : FFT-parameters: 36 36 900
Factor: 1.00<BR> ATOMNUMBER= 1
Bi1 VCOUL-ZERO =
0.21765E+00<BR>:EFG001:
EFG =
-0.00400 *10**21 V /
m**2<BR>
<BR>OVERALL ENERGY PARAMETER IS
0.3000<BR> OVERALL BASIS
SET ON ATOM IS LAPW<BR>
E( 2)= -1.2200 E(BOTTOM)=
-1.400 E(TOP)=
-1.040<BR>
APW+lo<BR> E(
2)=
0.3000<BR>
LOCAL ORBITAL <BR> E(
0)= -0.7300 E(BOTTOM)= -1.090
E(TOP)=
-200.000<BR>
APW+lo<BR> E(
0)=
0.3000<BR>
LOCAL ORBITAL<BR> E(
1)=
0.3000<BR>
APW+lo<BR><BR> K=
0.00000 0.00000
0.00000
1<BR>:RKM : MATRIX SIZE 6227LOs: 900 RKM= 6.98 WEIGHT=
1.00 PGR: <BR>
EIGENVALUES ARE:<BR>
-1.3853569 -1.3853569 -1.3817454
-1.3817454
-1.3808292<BR> -
1.3808292 -1.3783348 -1.3783348
-1.3762158
-1.3762158<BR>
-1.3741646 -1.3741646 -1.3729990
-1.3707902 ....<BR><BR></I>Could someone please suggest where the
problem might be? Any guidance will be much appreciated. <BR><BR>Thank
you.<BR><FONT color=#888888>MX</FONT>
<P>
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