[Wien] Monoclinic (space group P-1) does not converge with spin-orbit (SO).

Daniel Bilc bilc at pa.msu.edu
Tue Oct 7 16:35:09 CEST 2003


Hi!

  I tried to run a calculation on a monoclinic system using WIEN2K_03 
version. Without SO the calculation converged but with SO the 
calculation did not converge even with very small mixing parameter 
(PRATT  0.01). Using  WIEN97  I was able to do the calculation with SO.
  I think that  WIEN2K_03 has a bug for the monoclinic symmetry with SO. 
I will include the structure file for the system:

m_V2Al5Ge5                                                                     

P   LATTICE,NONEQUIV. ATOMS 12                         2 
P-1                  
MODE OF 
CALC=RELA                                                             
 13.284194 13.284194 21.471077 90.000000 90.000000 
45.237000                  
ATOM  -1: X=0.64290000 Y=0.13770000 Z=0.75000000
          MULT= 2          ISPLIT= 8
      -1: X=0.35710000 Y=0.86230000 Z=0.25000000
V 1        NPT=  781  R0=0.00005000 RMT=    2.4000   Z: 
23.0                  
LOCAL ROT MATRIX:    1.0000000 0.0000000 0.0000000
                     0.0000000 1.0000000 0.0000000
                     0.0000000 0.0000000 1.0000000
ATOM  -2: X=0.13770000 Y=0.64290000 Z=0.75000000
          MULT= 2          ISPLIT= 8
      -2: X=0.86230000 Y=0.35710000 Z=0.25000000
V 2        NPT=  781  R0=0.00005000 RMT=    2.4000   Z: 
23.0                  
LOCAL ROT MATRIX:    1.0000000 0.0000000 0.0000000
                     0.0000000 1.0000000 0.0000000
                     0.0000000 0.0000000 1.0000000
ATOM  -3: X=0.22080000 Y=0.22080000 Z=0.75000000
          MULT= 2          ISPLIT= 8
      -3: X=0.77920000 Y=0.77920000 Z=0.25000000
Ge1        NPT=  781  R0=0.00005000 RMT=    2.4000   Z: 
32.0                  
LOCAL ROT MATRIX:    1.0000000 0.0000000 0.0000000
                     0.0000000 1.0000000 0.0000000
                     0.0000000 0.0000000 1.0000000
ATOM  -4: X=0.84300000 Y=0.84300000 Z=0.55660000
          MULT= 2          ISPLIT= 8
      -4: X=0.15700000 Y=0.15700000 Z=0.44340000
Ge2        NPT=  781  R0=0.00005000 RMT=    2.4000   Z: 
32.0                  
LOCAL ROT MATRIX:    1.0000000 0.0000000 0.0000000
                     0.0000000 1.0000000 0.0000000
                     0.0000000 0.0000000 1.0000000
ATOM  -5: X=0.84300000 Y=0.84300000 Z=0.94340000
          MULT= 2          ISPLIT= 8
      -5: X=0.15700000 Y=0.15700000 Z=0.05660000
Ge3        NPT=  781  R0=0.00005000 RMT=    2.4000   Z: 
32.0                  
LOCAL ROT MATRIX:    1.0000000 0.0000000 0.0000000
                     0.0000000 1.0000000 0.0000000
                     0.0000000 0.0000000 1.0000000
ATOM  -6: X=0.53220000 Y=0.53220000 Z=0.63210000
          MULT= 2          ISPLIT= 8
      -6: X=0.46780000 Y=0.46780000 Z=0.36790000
Ge4        NPT=  781  R0=0.00005000 RMT=    2.4000   Z: 
32.0                  
LOCAL ROT MATRIX:    1.0000000 0.0000000 0.0000000
                     0.0000000 1.0000000 0.0000000
                     0.0000000 0.0000000 1.0000000
ATOM  -7: X=0.53220000 Y=0.53220000 Z=0.86790000
          MULT= 2          ISPLIT= 8
      -7: X=0.46780000 Y=0.46780000 Z=0.13210000
Ge5        NPT=  781  R0=0.00005000 RMT=    2.4000   Z: 
32.0                  
LOCAL ROT MATRIX:    1.0000000 0.0000000 0.0000000
                     0.0000000 1.0000000 0.0000000
                     0.0000000 0.0000000 1.0000000
ATOM  -8: X=0.70950000 Y=0.70950000 Z=0.75000000
          MULT= 2          ISPLIT= 8
      -8: X=0.29050000 Y=0.29050000 Z=0.25000000
Al1        NPT=  781  R0=0.00010000 RMT=    2.4000   Z: 
13.0                  
LOCAL ROT MATRIX:    1.0000000 0.0000000 0.0000000
                     0.0000000 1.0000000 0.0000000
                     0.0000000 0.0000000 1.0000000
ATOM  -9: X=0.33310000 Y=0.33310000 Z=0.54510000
          MULT= 2          ISPLIT= 8
      -9: X=0.66690000 Y=0.66690000 Z=0.45490000
Al2        NPT=  781  R0=0.00010000 RMT=    2.4000   Z: 
13.0                  
LOCAL ROT MATRIX:    1.0000000 0.0000000 0.0000000
                     0.0000000 1.0000000 0.0000000
                     0.0000000 0.0000000 1.0000000
ATOM -10: X=0.33310000 Y=0.33310000 Z=0.95490000
          MULT= 2          ISPLIT= 8
     -10: X=0.66690000 Y=0.66690000 Z=0.04510000
Al3        NPT=  781  R0=0.00010000 RMT=    2.4000   Z: 
13.0                  
LOCAL ROT MATRIX:    1.0000000 0.0000000 0.0000000
                     0.0000000 1.0000000 0.0000000
                     0.0000000 0.0000000 1.0000000
ATOM -11: X=0.04250000 Y=0.04250000 Z=0.62730000
          MULT= 2          ISPLIT= 8
     -11: X=0.95750000 Y=0.95750000 Z=0.37270000
Al4        NPT=  781  R0=0.00010000 RMT=    2.4000   Z: 
13.0                  
LOCAL ROT MATRIX:    1.0000000 0.0000000 0.0000000
                     0.0000000 1.0000000 0.0000000
                     0.0000000 0.0000000 1.0000000
ATOM -12: X=0.04250000 Y=0.04250000 Z=0.87270000
          MULT= 2          ISPLIT= 8
     -12: X=0.95750000 Y=0.95750000 Z=0.12730000
Al5        NPT=  781  R0=0.00010000 RMT=    2.4000   Z: 
13.0                  
LOCAL ROT MATRIX:    1.0000000 0.0000000 0.0000000
                     0.0000000 1.0000000 0.0000000
                     0.0000000 0.0000000 1.0000000
   2      NUMBER OF SYMMETRY OPERATIONS
-1 0 0 0.0000000
 0-1 0 0.0000000
 0 0-1 0.0000000
       1
 1 0 0 0.0000000
 0 1 0 0.0000000
 0 0 1 0.0000000
       2


Sincerely
Daniel Bilc
Graduate Student at
Michigan State University






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