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>