Odp: [Wien] supercell struct

K. Ruebenbauer sfrueben at cyf-kr.edu.pl
Sun Aug 1 13:23:56 CEST 2004


----- Original Message ----- 
From: Rezaei Behrooz <b.rezaei at tabrizu.ac.ir>
To: <wien at zeus.theochem.tuwien.ac.at>
Sent: Saturday, July 31, 2004 7:19 AM
Subject: [Wien] supercell struct


> Dear all wien users
> 
> I have costructed the 2x2x2 super struct file of GaN fom original GaN 
> struct file in wz phase by executing 'x supercell' as bellow:
> GaN                                                                      
> H   LATTICE,NONEQUIV. ATOMS 16     
> MODE OF CALC=RELA unit=ang 
>  12.052678 12.052678 19.570012 90.000000 90.000000120.000000
> ATOM   1: X=0.00000000 Y=0.00000000 Z=0.00000000
>           MULT= 2          ISPLIT= 8
> ATOM   1: X=0.33333334 Y=0.16666667 Z=0.25000000
> Ga         NPT=  781  R0=0.00020000 RMT=    1.9000   Z: 31.0
> 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=0.00000000 Z=0.00000000
>           MULT= 2          ISPLIT= 8
> ATOM   2: X=0.83333334 Y=0.16666667 Z=0.25000000
> Ga         NPT=  781  R0=0.00020000 RMT=    1.9000   Z: 31.0
> LOCAL ROT MATRIX:    1.0000000 0.0000000 0.0000000
>                      0.0000000 1.0000000 0.0000000
>                      0.0000000 0.0000000 1.0000000
> ATOM   3: X=0.00000000 Y=0.50000000 Z=0.00000000
>           MULT= 2          ISPLIT= 8
> ATOM   3: X=0.33333334 Y=0.66666667 Z=0.25000000
> Ga         NPT=  781  R0=0.00020000 RMT=    1.9000   Z: 31.0
> LOCAL ROT MATRIX:    1.0000000 0.0000000 0.0000000
>                      0.0000000 1.0000000 0.0000000
>                      0.0000000 0.0000000 1.0000000
> ATOM   4: X=0.50000000 Y=0.50000000 Z=0.00000000
>           MULT= 2          ISPLIT= 8
> ATOM   4: X=0.83333334 Y=0.66666667 Z=0.25000000
> Ga         NPT=  781  R0=0.00020000 RMT=    1.9000   Z: 31.0
> LOCAL ROT MATRIX:    1.0000000 0.0000000 0.0000000
>                      0.0000000 1.0000000 0.0000000
>                      0.0000000 0.0000000 1.0000000
> ATOM   5: X=0.00000000 Y=0.00000000 Z=0.50000000
>           MULT= 2          ISPLIT= 8
> ATOM   5: X=0.33333334 Y=0.16666667 Z=0.75000000
> Ga         NPT=  781  R0=0.00020000 RMT=    1.9000   Z: 31.0
> LOCAL ROT MATRIX:    1.0000000 0.0000000 0.0000000
>                      0.0000000 1.0000000 0.0000000
>                      0.0000000 0.0000000 1.0000000
> ATOM   6: X=0.50000000 Y=0.00000000 Z=0.50000000
>           MULT= 2          ISPLIT= 8
> ATOM   6: X=0.83333334 Y=0.16666667 Z=0.75000000
> Ga         NPT=  781  R0=0.00020000 RMT=    1.9000   Z: 31.0
> 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=0.50000000 Z=0.50000000
>           MULT= 2          ISPLIT= 8
> ATOM   7: X=0.33333334 Y=0.66666667 Z=0.75000000
> Ga         NPT=  781  R0=0.00020000 RMT=    1.9000   Z: 31.0
> LOCAL ROT MATRIX:    1.0000000 0.0000000 0.0000000
>                      0.0000000 1.0000000 0.0000000
>                      0.0000000 0.0000000 1.0000000
> ATOM   8: X=0.50000000 Y=0.50000000 Z=0.50000000
>           MULT= 2          ISPLIT= 8
> ATOM   8: X=0.83333334 Y=0.66666667 Z=0.75000000
> Ga         NPT=  781  R0=0.00020000 RMT=    1.9000   Z: 31.0
> LOCAL ROT MATRIX:    1.0000000 0.0000000 0.0000000
>                      0.0000000 1.0000000 0.0000000
>                      0.0000000 0.0000000 1.0000000
> ATOM   9: X=0.00000000 Y=0.00000000 Z=0.18850000
>           MULT= 2          ISPLIT= 8
> ATOM   9: X=0.33333334 Y=0.16666667 Z=0.43850000
> N          NPT=  781  R0=0.00020000 RMT=    1.6000   Z:  7.0
> LOCAL ROT MATRIX:    0.0000000 0.0000000 0.0000000
>                      0.0000000 0.0000000 0.0000000
>                      0.0000000 0.0000000 0.0000000
> ATOM  10: X=0.50000000 Y=0.00000000 Z=0.18850000
>           MULT= 2          ISPLIT= 8
> ATOM  10: X=0.83333334 Y=0.16666667 Z=0.43850000
> N          NPT=  781  R0=0.00020000 RMT=    1.6000   Z:  7.0
> LOCAL ROT MATRIX:    0.0000000 0.0000000 0.0000000
>                      0.0000000 0.0000000 0.0000000
>                      0.0000000 0.0000000 0.0000000
> ATOM  11: X=0.00000000 Y=0.50000000 Z=0.18850000
>           MULT= 2          ISPLIT= 8
> ATOM  11: X=0.33333334 Y=0.66666667 Z=0.43850000
> N          NPT=  781  R0=0.00020000 RMT=    1.6000   Z:  7.0
> LOCAL ROT MATRIX:    0.0000000 0.0000000 0.0000000
>                      0.0000000 0.0000000 0.0000000
>                      0.0000000 0.0000000 0.0000000
> ATOM  12: X=0.50000000 Y=0.50000000 Z=0.18850000
>           MULT= 2          ISPLIT= 8
> ATOM  12: X=0.83333334 Y=0.66666667 Z=0.43850000
> N          NPT=  781  R0=0.00020000 RMT=    1.6000   Z:  7.0
> LOCAL ROT MATRIX:    0.0000000 0.0000000 0.0000000
>                      0.0000000 0.0000000 0.0000000
>                      0.0000000 0.0000000 0.0000000
> ATOM  13: X=0.00000000 Y=0.00000000 Z=0.68850000
>           MULT= 2          ISPLIT= 8
> ATOM  13: X=0.33333334 Y=0.16666667 Z=0.93850000
> N          NPT=  781  R0=0.00020000 RMT=    1.6000   Z:  7.0
> LOCAL ROT MATRIX:    0.0000000 0.0000000 0.0000000
>                      0.0000000 0.0000000 0.0000000
>                      0.0000000 0.0000000 0.0000000
> ATOM  14: X=0.50000000 Y=0.00000000 Z=0.68850000
>           MULT= 2          ISPLIT= 8
> ATOM  14: X=0.83333334 Y=0.16666667 Z=0.93850000
> N          NPT=  781  R0=0.00020000 RMT=    1.6000   Z:  7.0
> LOCAL ROT MATRIX:    0.0000000 0.0000000 0.0000000
>                      0.0000000 0.0000000 0.0000000
>                      0.0000000 0.0000000 0.0000000
> ATOM  15: X=0.00000000 Y=0.50000000 Z=0.68850000
>           MULT= 2          ISPLIT= 8
> ATOM  15: X=0.33333334 Y=0.66666667 Z=0.93850000
> N          NPT=  781  R0=0.00020000 RMT=    1.6000   Z:  7.0
> LOCAL ROT MATRIX:    0.0000000 0.0000000 0.0000000
>                      0.0000000 0.0000000 0.0000000
>                      0.0000000 0.0000000 0.0000000
> ATOM  16: X=0.50000000 Y=0.50000000 Z=0.68850000
>           MULT= 2          ISPLIT= 8
> ATOM  16: X=0.83333334 Y=0.66666667 Z=0.93850000
> N          NPT=  781  R0=0.00020000 RMT=    1.6000   Z:  7.0
> LOCAL ROT MATRIX:    0.0000000 0.0000000 0.0000000
>                      0.0000000 0.0000000 0.0000000
>                      0.0000000 0.0000000 0.0000000
>    0      NUMBER OF SYMMETRY OPERATIONS
> 
> But i don't know what should i do for calculating band structure of Al(x)
> Ga(1-x)N alloy with an arbitrary x,for example replacing one Ga with Al 
> atom,....what is the key point in replacing of atoms.please if possible 
> explain it for  me so clear,because i am begginer. 
> Thank you very much in advance.
> best regards,
> ================================================================
> Behrooz Rezaei Email: b.rezaei at tabrizu.ac.ir
> Research Institute for Applied Physics and Astronomy 
> Tabriz University phone: +98-411-3393008 
> Tabriz, Iran Fax: +98-411-3347050 
> ===================================================================
> 
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