[Wien] How to flip the spins in instgen_lapw
Madhav Ghimire
ghimire.mpg at gmail.com
Thu Jul 5 10:15:26 CEST 2012
Dear all wien developers and users,
I intend to perform the AFM calculation for one of my selected system which
has single Co atoms in unit cell. For this, I generated a supercell with
(2x1x1) which generates 4 Co, 4 Sr and 8 oxygen atoms. With this structure
file, when I initiated the initialization, *warning appears with
multiplicity not equal. *
Then I initiated with the new structure (as asked by the software). The new
structure is shown below:
P 4
RELA
14.348318 7.174159 23.597208 90.000000 90.000000 90.000000
-1 0.00000000 0.00000000 0.00000000
4 8
-1 0.50000000 0.00000000 0.00000000
-1 0.25000000 0.50000000 0.50000000
-1 0.75000000 0.50000000 0.50000000
Co1 NPT= 781 R0=0.00005000 RMT= 1.8900 Z: 27.0
1.0000000 0.0000000 0.0000000
0.0000000 1.0000000 0.0000000
0.0000000 0.0000000 1.0000000
-2 0.00000000 0.00000000 0.35640000
8 8
-2 0.00000000 0.00000000 0.64360000
-2 0.50000000 0.00000000 0.35640000
-2 0.50000000 0.00000000 0.64360000
-2 0.25000000 0.50000000 0.85640000
-2 0.25000000 0.50000000 0.14360000
-2 0.75000000 0.50000000 0.85640000
-2 0.75000000 0.50000000 0.14360000
Sr2 NPT= 781 R0=0.00001000 RMT= 2.3100 Z: 38.0
1.0000000 0.0000000 0.0000000
0.0000000 1.0000000 0.0000000
0.0000000 0.0000000 1.0000000
-3 0.00000000 0.50000000 0.00000000
8 8
-3 0.25000000 0.00000000 0.00000000
-3 0.50000000 0.50000000 0.00000000
-3 0.75000000 0.00000000 0.00000000
-3 0.25000000 0.00000000 0.50000000
-3 0.00000000 0.50000000 0.50000000
-3 0.75000000 0.00000000 0.50000000
-3 0.50000000 0.50000000 0.50000000
O 3 NPT= 781 R0=0.00010000 RMT= 1.6800 Z: 8.0
1.0000000 0.0000000 0.0000000
0.0000000 1.0000000 0.0000000
0.0000000 0.0000000 1.0000000
-4 0.00000000 0.00000000 0.15920000
8 8
-4 0.00000000 0.00000000 0.84080000
-4 0.50000000 0.00000000 0.15920000
-4 0.50000000 0.00000000 0.84080000
-4 0.25000000 0.50000000 0.65920000
-4 0.25000000 0.50000000 0.34080000
-4 0.75000000 0.50000000 0.65920000
-4 0.75000000 0.50000000 0.34080000
O 4 NPT= 781 R0=0.00010000 RMT= 1.6800 Z: 8.0
1.0000000 0.0000000 0.0000000
0.0000000 1.0000000 0.0000000
0.0000000 0.0000000 1.0000000
0
~
Now my question is, within this structure file,
(i) How to flip the spins in *instgen_lapw* from the positions as there is
only single Co atoms with 8 positions.
(ii) How can we check the directions of provided spins in xcrysden*
*By the way, I also tried to run without allowing the new structure file.
Then it gives an error when I run dstart. The error are Rotdef not defined.
Pls help me to solve this issue.
Thanks in advance
M. P. Ghimire
NIMS
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