[Wien] AFM calculations relative to K-point

zhchwsd@163.com zhchwsd at 163.com
Thu Nov 27 09:24:15 CET 2008


Dear all users:
   AFM calculations are very important for determinding the FM ordering in semiconductor doped with TM ions. According to the userguide, in the file .inst we reverse spin direction of the d electrons. Then we calculate the magnetic properties with the command line runsp_lapw,but some problems appears:
   if l select 1k or 5k point, the magnetic moment of two Co atoms is -0.76µB and 0.77µB, the results are very well. however, when I select 12k or 20k pint, the magnetic moment of two Co is 0.76 and 0.78µB, is consistent with formal runsp_lapw results ( the spin directions of d electrons are not reversed).
   I don't know how to resoved this problem. 
   Any suggestions are wellcome and we appreciate for useful remarks.
  c---------------structure
Title                                                                          
P   LATTICE,NONEQUIV.ATOMS: 2210_P2/m                                          
MODE OF CALC=RELA unit=bohr                                                    
 17.903272 17.903272 12.041340 90.000000 90.000000 90.000000                   
ATOM  -1: X=0.00000000 Y=0.00000000 Z=0.00000000
          MULT= 1          ISPLIT= 8
Sn1        NPT=  781  R0=0.00001000 RMT=    1.8900   Z: 50.0                   
LOCAL ROT MATRIX:    1.0000000 0.0000000 0.0000000
                     0.0000000 1.0000000 0.0000000
                     0.0000000 0.0000000 1.0000000
ATOM  -2: X=0.75000000 Y=0.75000000 Z=0.75000000
          MULT= 4          ISPLIT= 8
      -2: X=0.25000000 Y=0.25000000 Z=0.75000000
      -2: X=0.25000000 Y=0.25000000 Z=0.25000000
      -2: X=0.75000000 Y=0.75000000 Z=0.25000000
Sn1        NPT=  781  R0=0.00001000 RMT=    1.8900   Z: 50.0                   
LOCAL ROT MATRIX:    1.0000000 0.0000000 0.0000000
                     0.0000000 1.0000000 0.0000000
                     0.0000000 0.0000000 1.0000000
ATOM  -3: X=0.50000000 Y=0.50000000 Z=0.00000000
          MULT= 1          ISPLIT= 8
Co2        NPT=  781  R0=0.00005000 RMT=    1.8900   Z: 27.0                   
LOCAL ROT MATRIX:    1.0000000 0.0000000 0.0000000
                     0.0000000 1.0000000 0.0000000
                     0.0000000 0.0000000 1.0000000
ATOM  -4: X=0.25000000 Y=0.75000000 Z=0.75000000
          MULT= 4          ISPLIT= 8
      -4: X=0.75000000 Y=0.25000000 Z=0.75000000
      -4: X=0.75000000 Y=0.25000000 Z=0.25000000
      -4: X=0.25000000 Y=0.75000000 Z=0.25000000
Sn3        NPT=  781  R0=0.00001000 RMT=    1.8900   Z: 50.0                   
LOCAL ROT MATRIX:    1.0000000 0.0000000 0.0000000
                     0.0000000 1.0000000 0.0000000
                     0.0000000 0.0000000 1.0000000
ATOM  -5: X=0.50000000 Y=0.00000000 Z=0.50000000
          MULT= 1          ISPLIT= 8
Sn4        NPT=  781  R0=0.00001000 RMT=    1.8900   Z: 50.0                   
LOCAL ROT MATRIX:    1.0000000 0.0000000 0.0000000
                     0.0000000 1.0000000 0.0000000
                     0.0000000 0.0000000 1.0000000
ATOM  -6: X=0.00000000 Y=0.50000000 Z=0.50000000
          MULT= 1          ISPLIT= 8
Sn5        NPT=  781  R0=0.00001000 RMT=    1.8900   Z: 50.0                   
LOCAL ROT MATRIX:    1.0000000 0.0000000 0.0000000
                     0.0000000 1.0000000 0.0000000
                     0.0000000 0.0000000 1.0000000
ATOM  -7: X=0.00000000 Y=0.00000000 Z=0.50000000
          MULT= 1          ISPLIT= 8
Sn6        NPT=  781  R0=0.00001000 RMT=    1.8900   Z: 50.0                   
LOCAL ROT MATRIX:    1.0000000 0.0000000 0.0000000
                     0.0000000 1.0000000 0.0000000
                     0.0000000 0.0000000 1.0000000
ATOM  -8: X=0.00000000 Y=0.50000000 Z=0.00000000
          MULT= 1          ISPLIT= 8
Sn7        NPT=  781  R0=0.00001000 RMT=    1.8900   Z: 50.0                   
LOCAL ROT MATRIX:    1.0000000 0.0000000 0.0000000
                     0.0000000 1.0000000 0.0000000
                     0.0000000 0.0000000 1.0000000
ATOM  -9: X=0.50000000 Y=0.00000000 Z=0.00000000
          MULT= 1          ISPLIT= 8
Sn8        NPT=  781  R0=0.00001000 RMT=    1.8900   Z: 50.0                   
LOCAL ROT MATRIX:    1.0000000 0.0000000 0.0000000
                     0.0000000 1.0000000 0.0000000
                     0.0000000 0.0000000 1.0000000
ATOM -10: X=0.50000000 Y=0.50000000 Z=0.50000000
          MULT= 1          ISPLIT= 8
Co2        NPT=  781  R0=0.00005000 RMT=    1.8900   Z: 27.0                   
LOCAL ROT MATRIX:    1.0000000 0.0000000 0.0000000
                     0.0000000 1.0000000 0.0000000
                     0.0000000 0.0000000 1.0000000
ATOM -11: X=0.15068925 Y=0.15068925 Z=0.00000000
          MULT= 2          ISPLIT= 8
     -11: X=0.84931075 Y=0.84931075 Z=0.00000000
O 1        NPT=  781  R0=0.00010000 RMT=    1.8900   Z:  8.0                   
LOCAL ROT MATRIX:    1.0000000 0.0000000 0.0000000
                     0.0000000 1.0000000 0.0000000
                     0.0000000 0.0000000 1.0000000
ATOM -12: X=0.09869849 Y=0.90130151 Z=0.75005508
          MULT= 4          ISPLIT= 8
     -12: X=0.90130151 Y=0.09869849 Z=0.75005508
     -12: X=0.90130151 Y=0.09869849 Z=0.24994492
     -12: X=0.09869849 Y=0.90130151 Z=0.24994492
O 2        NPT=  781  R0=0.00010000 RMT=    1.8900   Z:  8.0                   
LOCAL ROT MATRIX:    1.0000000 0.0000000 0.0000000
                     0.0000000 1.0000000 0.0000000
                     0.0000000 0.0000000 1.0000000
ATOM -13: X=0.59871265 Y=0.90143320 Z=0.75008289
          MULT= 4          ISPLIT= 8
     -13: X=0.40128735 Y=0.09856680 Z=0.75008289
     -13: X=0.40128735 Y=0.09856680 Z=0.24991711
     -13: X=0.59871265 Y=0.90143320 Z=0.24991711
O 3        NPT=  781  R0=0.00010000 RMT=    1.8900   Z:  8.0                   
LOCAL ROT MATRIX:    1.0000000 0.0000000 0.0000000
                     0.0000000 1.0000000 0.0000000
                     0.0000000 0.0000000 1.0000000
ATOM -14: X=0.09856680 Y=0.40128732 Z=0.75008289
          MULT= 4          ISPLIT= 8
     -14: X=0.90143320 Y=0.59871268 Z=0.75008289
     -14: X=0.90143320 Y=0.59871268 Z=0.24991711
     -14: X=0.09856680 Y=0.40128732 Z=0.24991711
O 4        NPT=  781  R0=0.00010000 RMT=    1.8900   Z:  8.0                   
LOCAL ROT MATRIX:    1.0000000 0.0000000 0.0000000
                     0.0000000 1.0000000 0.0000000
                     0.0000000 0.0000000 1.0000000
ATOM -15: X=0.59769577 Y=0.40230418 Z=0.74696386
          MULT= 4          ISPLIT= 8
     -15: X=0.40230423 Y=0.59769582 Z=0.74696386
     -15: X=0.40230423 Y=0.59769582 Z=0.25303614
     -15: X=0.59769577 Y=0.40230418 Z=0.25303614
O 5        NPT=  781  R0=0.00010000 RMT=    1.8900   Z:  8.0                   
LOCAL ROT MATRIX:    1.0000000 0.0000000 0.0000000
                     0.0000000 1.0000000 0.0000000
                     0.0000000 0.0000000 1.0000000
ATOM -16: X=0.34927632 Y=0.84936942 Z=0.00000000
          MULT= 2          ISPLIT= 8
     -16: X=0.65072368 Y=0.15063058 Z=0.00000000
O 6        NPT=  781  R0=0.00010000 RMT=    1.8900   Z:  8.0                   
LOCAL ROT MATRIX:    1.0000000 0.0000000 0.0000000
                     0.0000000 1.0000000 0.0000000
                     0.0000000 0.0000000 1.0000000
ATOM -17: X=0.65076007 Y=0.15057424 Z=0.50000000
          MULT= 2          ISPLIT= 8
     -17: X=0.34923993 Y=0.84942576 Z=0.50000000
O 7        NPT=  781  R0=0.00010000 RMT=    1.8900   Z:  8.0                   
LOCAL ROT MATRIX:    1.0000000 0.0000000 0.0000000
                     0.0000000 1.0000000 0.0000000
                     0.0000000 0.0000000 1.0000000
ATOM -18: X=0.84936942 Y=0.34927634 Z=0.00000000
          MULT= 2          ISPLIT= 8
     -18: X=0.15063058 Y=0.65072366 Z=0.00000000
O 8        NPT=  781  R0=0.00010000 RMT=    1.8900   Z:  8.0                   
LOCAL ROT MATRIX:    1.0000000 0.0000000 0.0000000
                     0.0000000 1.0000000 0.0000000
                     0.0000000 0.0000000 1.0000000
ATOM -19: X=0.15057424 Y=0.65076003 Z=0.50000000
          MULT= 2          ISPLIT= 8
     -19: X=0.84942576 Y=0.34923997 Z=0.50000000
O 9        NPT=  781  R0=0.00010000 RMT=    1.8900   Z:  8.0                   
LOCAL ROT MATRIX:    1.0000000 0.0000000 0.0000000
                     0.0000000 1.0000000 0.0000000
                     0.0000000 0.0000000 1.0000000
ATOM -20: X=0.34913337 Y=0.34913337 Z=0.00000000
          MULT= 2          ISPLIT= 8
     -20: X=0.65086663 Y=0.65086663 Z=0.00000000
O 10       NPT=  781  R0=0.00010000 RMT=    1.8900   Z:  8.0                   
LOCAL ROT MATRIX:    1.0000000 0.0000000 0.0000000
                     0.0000000 1.0000000 0.0000000
                     0.0000000 0.0000000 1.0000000
ATOM -21: X=0.64939115 Y=0.64939115 Z=0.50000000
          MULT= 2          ISPLIT= 8
     -21: X=0.35060885 Y=0.35060885 Z=0.50000000
O 11       NPT=  781  R0=0.00010000 RMT=    1.8900   Z:  8.0                   
LOCAL ROT MATRIX:    1.0000000 0.0000000 0.0000000
                     0.0000000 1.0000000 0.0000000
                     0.0000000 0.0000000 1.0000000
ATOM -22: X=0.84938579 Y=0.84938579 Z=0.50000000
          MULT= 2          ISPLIT= 8
     -22: X=0.15061421 Y=0.15061421 Z=0.50000000
O 12       NPT=  781  R0=0.00010000 RMT=    1.8900   Z:  8.0                   
LOCAL ROT MATRIX:    1.0000000 0.0000000 0.0000000
                     0.0000000 1.0000000 0.0000000
                     0.0000000 0.0000000 1.0000000
   4      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
-1 0 0 0.0000000
 0-1 0 0.0000000
 0 0-1 0.0000000
       3
 1 0 0 0.0000000
 0 1 0 0.0000000
 0 0-1 0.0000000
       4




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