[Wien] Case.inst and..

Stefaan Cottenier Stefaan.Cottenier at fys.kuleuven.be
Wed Oct 25 14:36:00 CEST 2006


I'm not sure whether I understand your problem, but try 'instgen' after 
having changed the structure.

Stefaan


NAJMEH SOLTANI wrote:

> Dear wien users,
> I'm working with wien-O6 on a suse 10 in a pentium 4 pc.
> I'm working on AFM calculation for LaCrO3 in orthorombic with "Pnma" 
> space group.I have 4 positions for Cr but, because LaCrO3 HAs G-type 
> Magnetic order so I decided to break the symetry by labeling Cr in two 
> different Cr,that each of them have two positions.then I had to set 
> the lattice type "P".this is case.struct file:
>  
> LaCrO3                                                                         
>
> P   LATTICE,NONEQUIV.ATOMS:  
> 5                                                
> MODE OF CALC=RELA 
> unit=ang                                                    
>  10.366818 14.679856 10.440120 90.000000 90.000000 
> 90.000000                  
> ATOM  -1: X=0.01675000 Y=0.25000000 Z=0.99625000
>           MULT= 4          ISPLIT= 8
>       -1: X=0.98325000 Y=0.75000000 Z=0.00375000
>       -1: X=0.51675000 Y=0.25000000 Z=0.50375000
>       -1: X=0.48325000 Y=0.75000000 Z=0.49625000
> La1        NPT=  781  R0=0.00010000 RMT=    2.6000   Z: 
> 57.0                  
> LOCAL ROT MATRIX:    1.0000000 0.0000000 0.0000000
>                      0.0000000 1.0000000 0.0000000
>                      0.0000000 0.0000000 1.0000000
> ATOM  -2: X=0.50000000 Y=0.50000000 Z=0.00000000
>           MULT= 2          ISPLIT= 8
>       -2: X=0.00000000 Y=0.00000000 Z=0.50000000
> Cr1        NPT=  781  R0=0.00010000 RMT=    1.8000   Z: 
> 24.0                  
> 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=0.00000000 Z=0.00000000
>           MULT= 2          ISPLIT= 8
>       -3: X=0.00000000 Y=0.50000000 Z=0.50000000
> Cr2        NPT=  781  R0=0.00010000 RMT=    1.8000   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  -4: X=0.49358000 Y=0.25000000 Z=0.06466000
>           MULT= 4          ISPLIT= 8
>       -4: X=0.50642000 Y=0.75000000 Z=0.93534000
>       -4: X=0.99358000 Y=0.25000000 Z=0.43534000
>       -4: X=0.00642000 Y=0.75000000 Z=0.56466000
> O 1        NPT=  781  R0=0.00050000 RMT=    1.6000   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  -5: X=0.22825000 Y=0.53503000 Z=0.22855000
>           MULT= 8          ISPLIT= 8
>       -5: X=0.77175000 Y=0.46497000 Z=0.77145000
>       -5: X=0.72825000 Y=0.53503000 Z=0.27145000
>       -5: X=0.27175000 Y=0.46497000 Z=0.72855000
>       -5: X=0.27175000 Y=0.03503000 Z=0.72855000
>       -5: X=0.72825000 Y=0.96497000 Z=0.27145000
>       -5: X=0.77175000 Y=0.03503000 Z=0.77145000
>       -5: X=0.22825000 Y=0.96497000 Z=0.22855000
> O 2        NPT=  781  R0=0.00050000 RMT=    1.6000   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 0.5000000
>  0 1 0 0.5000000
>  0 0 1 0.5000000
>        3
>  1 0 0 0.5000000
>  0-1 0 0.5000000
>  0 0-1 0.5000000
>        4
> After that In initialize -calculation, in edit inst key I found this 
> error," LaCrO3-inst not consistent wiyh z  edit Lacro3.inst and rerun 
> lstart afterwards or change z in structgen."I 'm afraid wheather 
> structgen does match the spacegroup or not?
> Please tell me what should I do.should I build cae.supergroup?If yes How?
> at the end this is my case.inst file I flliped spin in Cr2:
>  
> La 1      
> Xe 2 
> 5, 2,1.0  N
> 5, 2,0.0  N
> 6,-1,1.0  N
> 6,-1,1.0  N
> Cr 1      
> Ar 3 
> 3, 2,2.0  N
> 3, 2,2.0  N
> 3,-3,1.0  N
> 3,-3,0.0  N
> 4,-1,1.0  N
> 4,-1,0.0  N
> Cr 2      
> Ar 3 
> 3, 2,2.0  N
> 3, 2,2.0  N
> 3,-3,0.0  N -->spin flipped
> 3,-3,1.0  N -->spin flipped
> 4,-1,1.0  N
> 4,-1,0.0  N
> O 1      
> He 3 
> 2,-1,1.0  N
> 2,-1,1.0  N
> 2, 1,1.0  N
> 2, 1,1.0  N
> 2,-2,2.0  N
> 2,-2,0.0  N
> O 2      
> He 3 
> 2,-1,1.0  N
> 2,-1,1.0  N
> 2, 1,1.0  N
> 2, 1,1.0  N
> 2,-2,2.0  N
> 2,-2,0.0  N
> ****     End of Input
> ****     End of Input
> according to page 72 UG,what does it mean that each s=+1 or s=-1 again 
> split in two up and down states?Please tell me a source to Learn these 
> relativistic Quantum Numbers.
> Best Regards,
> Najmeh
>   
>
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