[Wien] Problem with x symmetry

Michael Sluydts Michael.Sluydts at UGent.be
Mon Jan 27 10:44:21 CET 2014


Hello everyone,

I've been studying a set of similar structures (semiconductor defects) 
which, each time, I first relax with min_lapw after which I do another 
static run. Once in a while the relaxation gives me a structure which no 
longer passes through x symmetry. The error and an example struct are 
given below. Does anyone have any idea how to consistently fix this? x 
patchsymm does not fix the problem.


Thanks,

Michael Sluydts


  ATOM:           1
   no hex-pointgroup found
lm:
  ==============================================
  ---------- ERROR ------------------
  ERROR: (multiplicity of atom           1 )*(number of 
pointgroup-operations)
  ERROR: is NOT = (number of spacegroup-operations)
  ERROR: MULT:           1  ISYM:           0  NSYM           6
  ERROR: Check your struct file with    x sgroup
  ---------- ERROR ------------------

  ATOM:           2
   no hex-pointgroup found
lm:
  ==============================================
  ---------- ERROR ------------------
  ERROR: (multiplicity of atom           2 )*(number of 
pointgroup-operations)
  ERROR: is NOT = (number of spacegroup-operations)
  ERROR: MULT:           3  ISYM:           0  NSYM           6
  ERROR: Check your struct file with    x sgroup
  ---------- ERROR ------------------

  ATOM:           3
   no hex-pointgroup found
lm:
  ==============================================
  ---------- ERROR ------------------
  ERROR: (multiplicity of atom           3 )*(number of 
pointgroup-operations)
  ERROR: is NOT = (number of spacegroup-operations)
  ERROR: MULT:           6  ISYM:           0  NSYM           6
  ERROR: Check your struct file with    x sgroup
  ---------- ERROR ------------------


octavetmp
R                           20 160 R3m
              RELA
  30.796412 30.796412 37.717748 90.000000 90.000000120.000000
ATOM   1: X=0.00000000 Y=0.00000000 Z=0.00000000
           MULT= 1          ISPLIT= 4
Ga1        NPT=  781  R0=0.00005000 RMT=    1.5200   Z:  31.00000
LOCAL ROT MATRIX:    1.0000000 0.0000000 0.0000000
                      0.0000000 1.0000000 0.0000000
                      0.0000000 0.0000000 1.0000000
ATOM   2: X=0.12462802 Y=0.37401410 Z=0.12462802
           MULT= 3          ISPLIT= 8
        2: X=0.12462802 Y=0.12462802 Z=0.37401410
        2: X=0.37401410 Y=0.12462802 Z=0.12462802
Ge1        NPT=  781  R0=0.00005000 RMT=    2.0000   Z:  32.00000
LOCAL ROT MATRIX:    1.0000000 0.0000000 0.0000000
                      0.0000000 1.0000000 0.0000000
                      0.0000000 0.0000000 1.0000000
ATOM   3: X=0.62493876 Y=0.37487342 Z=0.12467773
           MULT= 6          ISPLIT= 8
        3: X=0.12467773 Y=0.62493876 Z=0.37487342
        3: X=0.37487342 Y=0.12467773 Z=0.62493876
        3: X=0.37487342 Y=0.62493876 Z=0.12467773
        3: X=0.62493876 Y=0.12467773 Z=0.37487342
        3: X=0.12467773 Y=0.37487342 Z=0.62493876
Ge2        NPT=  781  R0=0.00005000 RMT=    2.0000   Z:  32.00000
LOCAL ROT MATRIX:    1.0000000 0.0000000 0.0000000
                      0.0000000 1.0000000 0.0000000
                      0.0000000 0.0000000 1.0000000
ATOM   4: X=0.62492215 Y=0.37475633 Z=0.62492215
           MULT= 3          ISPLIT= 8
        4: X=0.62492215 Y=0.62492215 Z=0.37475633
        4: X=0.37475633 Y=0.62492215 Z=0.62492215
Ge3        NPT=  781  R0=0.00005000 RMT=    2.0000   Z:  32.00000
LOCAL ROT MATRIX:    1.0000000 0.0000000 0.0000000
                      0.0000000 1.0000000 0.0000000
                      0.0000000 0.0000000 1.0000000
ATOM   5: X=0.12201757 Y=0.87800148 Z=0.12201757
           MULT= 3          ISPLIT= 8
        5: X=0.12201757 Y=0.12201757 Z=0.87800148
        5: X=0.87800148 Y=0.12201757 Z=0.12201757
Ge4        NPT=  781  R0=0.00005000 RMT=    2.0000   Z:  32.00000
LOCAL ROT MATRIX:    1.0000000 0.0000000 0.0000000
                      0.0000000 1.0000000 0.0000000
                      0.0000000 0.0000000 1.0000000
ATOM   6: X=0.62573282 Y=0.87502487 Z=0.12480892
           MULT= 6          ISPLIT= 8
        6: X=0.12480892 Y=0.62573282 Z=0.87502487
        6: X=0.87502487 Y=0.12480892 Z=0.62573282
        6: X=0.87502487 Y=0.62573282 Z=0.12480892
        6: X=0.62573282 Y=0.12480892 Z=0.87502487
        6: X=0.12480892 Y=0.87502487 Z=0.62573282
Ge5        NPT=  781  R0=0.00005000 RMT=    2.0000   Z:  32.00000
LOCAL ROT MATRIX:    1.0000000 0.0000000 0.0000000
                      0.0000000 1.0000000 0.0000000
                      0.0000000 0.0000000 1.0000000
ATOM   7: X=0.62500264 Y=0.87521103 Z=0.62500264
           MULT= 3          ISPLIT= 8
        7: X=0.62500264 Y=0.62500264 Z=0.87521103
        7: X=0.87521103 Y=0.62500264 Z=0.62500264
Ge6        NPT=  781  R0=0.00005000 RMT=    2.0000   Z:  32.00000
LOCAL ROT MATRIX:    1.0000000 0.0000000 0.0000000
                      0.0000000 1.0000000 0.0000000
                      0.0000000 0.0000000 1.0000000
ATOM   8: X=0.49974584 Y=0.99967116 Z=0.99967116
           MULT= 3          ISPLIT= 8
        8: X=0.99967116 Y=0.49974584 Z=0.99967116
        8: X=0.99967116 Y=0.99967116 Z=0.49974584
Ge7        NPT=  781  R0=0.00005000 RMT=    2.0000   Z:  32.00000
LOCAL ROT MATRIX:    1.0000000 0.0000000 0.0000000
                      0.0000000 1.0000000 0.0000000
                      0.0000000 0.0000000 1.0000000
ATOM   9: X=0.50009309 Y=0.99998407 Z=0.50009309
           MULT= 3          ISPLIT= 8
        9: X=0.50009309 Y=0.50009309 Z=0.99998407
        9: X=0.99998407 Y=0.50009309 Z=0.50009309
Ge8        NPT=  781  R0=0.00005000 RMT=    2.0000   Z:  32.00000
LOCAL ROT MATRIX:    1.0000000 0.0000000 0.0000000
                      0.0000000 1.0000000 0.0000000
                      0.0000000 0.0000000 1.0000000
ATOM  10: X=0.49959753 Y=0.49959753 Z=0.49959753
           MULT= 1          ISPLIT= 4
Ge9        NPT=  781  R0=0.00005000 RMT=    2.0000   Z:  32.00000
LOCAL ROT MATRIX:    1.0000000 0.0000000 0.0000000
                      0.0000000 1.0000000 0.0000000
                      0.0000000 0.0000000 1.0000000
ATOM  11: X=0.37452011 Y=0.37452011 Z=0.37452011
           MULT= 1          ISPLIT= 4
Ge10       NPT=  781  R0=0.00005000 RMT=    2.0000   Z:  32.00000
LOCAL ROT MATRIX:    1.0000000 0.0000000 0.0000000
                      0.0000000 1.0000000 0.0000000
                      0.0000000 0.0000000 1.0000000
ATOM  12: X=0.87540007 Y=0.37508357 Z=0.37508357
           MULT= 3          ISPLIT= 8
       12: X=0.37508357 Y=0.87540007 Z=0.37508357
       12: X=0.37508357 Y=0.37508357 Z=0.87540007
Ge11       NPT=  781  R0=0.00005000 RMT=    2.0000   Z:  32.00000
LOCAL ROT MATRIX:    1.0000000 0.0000000 0.0000000
                      0.0000000 1.0000000 0.0000000
                      0.0000000 0.0000000 1.0000000
ATOM  13: X=0.87489421 Y=0.37385379 Z=0.87489421
           MULT= 3          ISPLIT= 8
       13: X=0.87489421 Y=0.87489421 Z=0.37385379
       13: X=0.37385379 Y=0.87489421 Z=0.87489421
Ge12       NPT=  781  R0=0.00005000 RMT=    2.0000   Z:  32.00000
LOCAL ROT MATRIX:    1.0000000 0.0000000 0.0000000
                      0.0000000 1.0000000 0.0000000
                      0.0000000 0.0000000 1.0000000
ATOM  14: X=0.87808689 Y=0.87808689 Z=0.87808689
           MULT= 1          ISPLIT= 4
Ge13       NPT=  781  R0=0.00005000 RMT=    2.0000   Z:  32.00000
LOCAL ROT MATRIX:    1.0000000 0.0000000 0.0000000
                      0.0000000 1.0000000 0.0000000
                      0.0000000 0.0000000 1.0000000
ATOM  15: X=0.99822214 Y=0.24912931 Z=0.24912931
           MULT= 3          ISPLIT= 8
       15: X=0.24912931 Y=0.99822214 Z=0.24912931
       15: X=0.24912931 Y=0.24912931 Z=0.99822214
Ge14       NPT=  781  R0=0.00005000 RMT=    2.0000   Z:  32.00000
LOCAL ROT MATRIX:    1.0000000 0.0000000 0.0000000
                      0.0000000 1.0000000 0.0000000
                      0.0000000 0.0000000 1.0000000
ATOM  16: X=0.49973819 Y=0.24943461 Z=0.24943461
           MULT= 3          ISPLIT= 8
       16: X=0.24943461 Y=0.49973819 Z=0.24943461
       16: X=0.24943461 Y=0.24943461 Z=0.49973819
Ge15       NPT=  781  R0=0.00005000 RMT=    2.0000   Z:  32.00000
LOCAL ROT MATRIX:    1.0000000 0.0000000 0.0000000
                      0.0000000 1.0000000 0.0000000
                      0.0000000 0.0000000 1.0000000
ATOM  17: X=0.00139899 Y=0.24876851 Z=0.75065563
           MULT= 6          ISPLIT= 8
       17: X=0.75065563 Y=0.00139899 Z=0.24876851
       17: X=0.24876851 Y=0.75065563 Z=0.00139899
       17: X=0.24876851 Y=0.00139899 Z=0.75065563
       17: X=0.00139899 Y=0.75065563 Z=0.24876851
       17: X=0.75065563 Y=0.24876851 Z=0.00139899
Ge16       NPT=  781  R0=0.00005000 RMT=    2.0000   Z:  32.00000
LOCAL ROT MATRIX:    1.0000000 0.0000000 0.0000000
                      0.0000000 1.0000000 0.0000000
                      0.0000000 0.0000000 1.0000000
ATOM  18: X=0.49993145 Y=0.24960274 Z=0.75025895
           MULT= 6          ISPLIT= 8
       18: X=0.75025895 Y=0.49993145 Z=0.24960274
       18: X=0.24960274 Y=0.75025895 Z=0.49993145
       18: X=0.24960274 Y=0.49993145 Z=0.75025895
       18: X=0.49993145 Y=0.75025895 Z=0.24960274
       18: X=0.75025895 Y=0.24960274 Z=0.49993145
Ge17       NPT=  781  R0=0.00005000 RMT=    2.0000   Z:  32.00000
LOCAL ROT MATRIX:    1.0000000 0.0000000 0.0000000
                      0.0000000 1.0000000 0.0000000
                      0.0000000 0.0000000 1.0000000
ATOM  19: X=0.99820785 Y=0.75081641 Z=0.75081641
           MULT= 3          ISPLIT= 8
       19: X=0.75081641 Y=0.99820785 Z=0.75081641
       19: X=0.75081641 Y=0.75081641 Z=0.99820785
Ge18       NPT=  781  R0=0.00005000 RMT=    2.0000   Z:  32.00000
LOCAL ROT MATRIX:    1.0000000 0.0000000 0.0000000
                      0.0000000 1.0000000 0.0000000
                      0.0000000 0.0000000 1.0000000
ATOM  20: X=0.49984687 Y=0.75004939 Z=0.75004939
           MULT= 3          ISPLIT= 8
       20: X=0.75004939 Y=0.49984687 Z=0.75004939
       20: X=0.75004939 Y=0.75004939 Z=0.49984687
Ge19       NPT=  781  R0=0.00005000 RMT=    2.0000   Z:  32.00000
LOCAL ROT MATRIX:    1.0000000 0.0000000 0.0000000
                      0.0000000 1.0000000 0.0000000
                      0.0000000 0.0000000 1.0000000
    6      NUMBER OF SYMMETRY OPERATIONS
  1 0 0 0.00000000
  0 1 0 0.00000000
  0 0 1 0.00000000
    1
  0 0 1 0.00000000
  1 0 0 0.00000000
  0 1 0 0.00000000
    2
  0 1 0 0.00000000
  0 0 1 0.00000000
  1 0 0 0.00000000
    3
  0 1 0 0.00000000
  1 0 0 0.00000000
  0 0 1 0.00000000
    4
  1 0 0 0.00000000
  0 0 1 0.00000000
  0 1 0 0.00000000
    5
  0 0 1 0.00000000
  0 1 0 0.00000000
  1 0 0 0.00000000
    6


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