[Wien] Problem with initialization for Spin-orbit coupling in symmetso program

Peter Blaha pblaha at theochem.tuwien.ac.at
Fri May 25 08:44:02 CEST 2012


The old version of symmetso had problems for some specific structures/symmetries. Therefore it
may work for some cases, but not in others....

This bug has probably been solved later on.

Am 25.05.2012 08:27, schrieb Santu Baidya:
> Dear Peter Blaha and wien2k users,
>                      I need to know that is my problem related to bug or something else. I have to mention it here that I have another similar structure with same space group
> P21/n but only change in A site cation. But in that case I did not get such problem and it worked properly. Then why in this structure I am getting such problem. If you could tell
> me I could solve it anyway. Thanks.
>
> On 25 May 2012 10:44, Peter Blaha <pblaha at theochem.tuwien.ac.at <mailto:pblaha at theochem.tuwien.ac.at>> wrote:
>
>     Most likely, you need to upgrade to a more recent version, or follow all suggestions/bug-fixes
>     of symmetso on the mailing list.
>
>     Am 24.05.2012 19:10, schrieb Santu Baidya:
>
>         Dear Wien2k users, I am using WIEN2k_07.3 (Release 13/8/2007) for doing GGA+SO calculation on a double perovskite compound A2BB'O6 with P21/n (14 No.) spacegroup. I first
>         did a simple GGA calculation and found correct moment and DOSes. Then starting with the GGA calculation I started doing initialization for SO calculation with
>         "initso_lapw". I chose (0 0 1) magnetization direction as I need and then increased "emax " in case.in1 file and then comes the option:
>
>         Do you have a spinpolarized case (and want to run symmetso) ?(y/N)
>
>         and I gave y (yes). And then a file opens where I found:
>         {
>            LATSYM done
>              347 SCSO                                     s-o calc. M||  0.00  0.00  1.00
>              348 Sr        :  16 Atome, Index   1 bis  16
>              349 Cr        :   8 Atome, Index  17 bis  24
>              350 Sb        :   8 Atome, Index  25 bis  32
>              351 O         :  16 Atome, Index  33 bis  48
>              352 O         :  16 Atome, Index  49 bis  64
>              353 O         :  16 Atome, Index  65 bis  80
>              354   RSTRUCT done
>              355 number of atoms:  80
>              356
>              357  ATOM:          -1
>              358   check whether the operations form a group
>              359   SYMMETRY OPERATIONS FORM A GROUP ,GROUP MULTIPLICATION TABLE:
>              360    i
>              361  j
>              362   no pointgroup found, isym =           0
>              363 lm:
>              364  ==============================__================
>              365
>              366  ATOM:          -2
>              367 Cr         G 1 oper. #  2     -1                   GM=
>              368   check whether the operations form a group
>              369  !! SYMM. OP. DO NOT FORM A GROUP !!
>              370    i  1
>              371  j
>              372  1    0
>              373   pointgroup is 1 (neg. iatnr!!)
>              374   axes should be: any
>              375   z-rotation vector:  0.0000  0.0000  1.0000
>              376   y-rotation vector:  0.0000  0.0000  0.0000    0
>              377   WARNING: LOCAL ROTATION MATRIX CHANGED
>              378 LOCAL ROT MATRIX:       NEW                                OLD
>              379            1.0000000 0.0000000 0.0000000     -1.0000000 0.0000000 0.0000000
>              380            0.0000000 1.0000000 0.0000000      0.0000000-1.0000000 0.0000000
>              381            0.0000000 0.0000000 1.0000000      0.0000000 0.0000000-1.0000000
>              382 lm: 0 0  1 0  1 1 -1 1  2 0  2 1 -2 1  2 2 -2 2  3 0  3 1 -3 1  3 2 -3 2  3 3 -3 3  4 0  4 1 -4 1  4 2 -4 2  4 3 -4 3  4 4 -4 4  5 0  5 1 -5 1  5 2 -5 2  5 3 -5 3
>         5 4 -5 4  5 5 -5 5  6 0  6 1 -6 1  6 2 -6 2  6 3 -6         3  6 4 -6 4  6 5 -6 5  6 6 -6 6
>              383  ==============================__================    }
>
>         Then it was asking me :  Do you want to use the new structure for SO calculations ? (y/N)
>         I did y (yes) and I found:
>         {
>         We run KGEN to generate a new kmesh for the SO calculation:
>         forrtl: severe (24): end-of-file during read, unit 20, file /home/santu/ACSO/TRY/test/__SCSO/SCSO.struct
>         Image              PC                Routine            Line        Source
>         kgen               000000000045A997  Unknown               Unknown  Unknown
>         kgen               0000000000458D5E  Unknown               Unknown  Unknown
>         kgen               000000000044D798  Unknown               Unknown  Unknown
>         kgen               000000000042F4B7  Unknown               Unknown  Unknown
>         kgen               000000000042F120  Unknown               Unknown  Unknown
>         kgen               00000000004193F3  Unknown               Unknown  Unknown
>         kgen               000000000040375D  Unknown               Unknown  Unknown
>         kgen               0000000000402E2A  Unknown               Unknown  Unknown
>         libc.so.6          0000003C31E1D8B4  Unknown               Unknown  Unknown
>         kgen               0000000000402D6A  Unknown               Unknown  Unknown
>         0.000u 0.001s 0:00.00 0.0%    0+0k 0+0io 0pf+0w
>         error: command   /home/santu/bin/kgen kgen.def   failed  }
>
>         Then in case.struct file A and O ions are missing with only 4 atoms B and B', but it was still showing :  6 4_P2 in the case.struct file
>
>         that means 6 atoms should be into the file.
>
>
>         Could any one please tell me what is the actual reason behind it and how can I solve it. My information may looks ugly but according to the rule of this forum I have to
>         give you all the information that is why I have tried to give all informations I faced.
>
>         I tried to find the answer from forum's other frequently asked questions but I did not get it.
>
>         So Could any one please give me the reason for this problem. Thanks in advance.
>
>
>
>         Santu Baidya
>         PhD Student
>         SNBNCBS
>         Kolkata-700098
>
>
>
>
>         --
>         *"The happiest people do not always have the best of all,* * they simply appreciate  what they find on their way!!!" SANTU
>         *
>
>
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>
>     --
>     ------------------------------__-----------
>     Peter Blaha
>     Inst. Materials Chemistry, TU Vienna
>     Getreidemarkt 9, A-1060 Vienna, Austria
>     Tel: +43-1-5880115671
>     Fax: +43-1-5880115698
>     email: pblaha at theochem.tuwien.ac.at <mailto:pblaha at theochem.tuwien.ac.at>
>     ------------------------------__-----------
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>
>
>
> --
> *"The happiest people do not always have the best of all,* * they simply appreciate  what they find on their way!!!" SANTU
> *
>
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-- 

                                       P.Blaha
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Peter BLAHA, Inst.f. Materials Chemistry, TU Vienna, A-1060 Vienna
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Email: blaha at theochem.tuwien.ac.at    WWW: http://info.tuwien.ac.at/theochem/
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