[Wien] lapw2dm error in LDA+U calculation with spin-orbit coupling.

Laurence Marks L-marks at northwestern.edu
Tue Jun 16 05:39:04 CEST 2015


Did you really mean to run with a U of 32eV? Or did you intend to use
2.4eV, I.e. 0.176 in case.inorb?

---
Professor Laurence Marks
Department of Materials Science and Engineering
Northwestern University
http://www.numis.northwestern.edu
Corrosion in 4D http://MURI4D.numis.northwestern.edu
Co-Editor, Acta Cryst A
"Research is to see what everybody else has seen, and to think what nobody
else has thought"
Albert Szent-Gyorgi
On Jun 15, 2015 22:28, "Xu Wenhu" <xuwh02 at gmail.com> wrote:

> Dear Wien users,
>
> I attempted to run LDA+U calculation with a simplified structure of
> Sr2IrO4 (case.struct is appended). I am having problem at the lapwdm
> step when both -so and -orb are turned on. In fact, there appeared to
> be no error if I run with only the -orb option (no spin-orbit
> coupling).
>
> I am aware of some similar issues in
> http://www.mail-archive.com/wien%40zeus.theochem.tuwien.ac.at/msg08720.html
> http://zeus.theochem.tuwien.ac.at/pipermail/wien/2013-March/018525.html
> But my case did not involve with -eece  mentioned in the above links.
>
> Thank you very much in advance! More detailed information about my
> case is as follows. First I executed
>
>         runsp_lapw -so -ec 0.0001 -cc 0.0001 -p
>
> and the self-consistency loop converged successfully. Then I executed
>
>         runsp_lapw -orb -so -cc 0.0001 -ec 0.0001 -p
>
> but it stopped at lapwdm. The 'uplapw.error' has only one line:
>
>         Error in LAPW2DM
>
> I checked that nothing shown in other *.error files.
> The :log file shows :
> ---------------------------------------------------------
> >   (runsp_lapw) options: -orb -so -cc 0.0001 -ec 0.0001 -p -i 1
> Mon Jun 15 23:02:40 EDT 2015> (x) lapw0 -p
> Mon Jun 15 23:02:56 EDT 2015> (x) orb -up -p
> Mon Jun 15 23:02:56 EDT 2015> (x) orb -dn -p
> Mon Jun 15 23:02:56 EDT 2015> (x) lapw1 -up -p
> Mon Jun 15 23:05:22 EDT 2015> (x) lapw1 -dn -p
> Mon Jun 15 23:08:15 EDT 2015> (x) lapwso -up -orb -p
> Mon Jun 15 23:09:23 EDT 2015> (x) lapw2 -up -p -c -so
> Mon Jun 15 23:09:41 EDT 2015> (x) sumpara -up -d
> Mon Jun 15 23:09:43 EDT 2015> (x) lapw2 -dn -p -c -so
> Mon Jun 15 23:10:01 EDT 2015> (x) sumpara -dn -d
> Mon Jun 15 23:10:02 EDT 2015> (x) lapwdm -up -p -c -so
> ---------------------------------------------------------
>
> The output during the execution is
> ---------------------------------------------------------
>  LAPW0 END
>  ORB   END
>  ORB   END
>  LAPW1 END
>  .....
>  LAPWSO END
>  ....
>  LAPW2 - FERMI; weighs written
>   LAPW2 END
>  ....
>  SUMPARA END
> LAPW2 - FERMI; weighs written
>  LAPW2 END
>  ....
>  SUMPARA END
>
> >   stop error
> ---------------------------------------------------------
>
> Best regards,
> Wenhu Xu
>
> The case.indm(c) and case.inorb files are
> ===== case.indmc =================
> -12.                      Emin cutoff energy
>  2                       number of atoms for which density matrix is
> calculated
>  1  1  2      index of 1st atom, number of L's, L1
>  2  1  2      dtto for 2nd atom, repeat NATOM times
>  0 0           r-index, (l,s)index
> ================================
>
> ===== case.inorb =================
>   1  2  0                     nmod, natorb, ipr
> PRATT  1.0                    BROYD/PRATT, mixing
>   1 1 2                          iatom nlorb, lorb
>   2 1 2                          iatom nlorb, lorb
>   1                              nsic 0..AFM, 1..SIC, 2..HFM
>    2.40 0.00        U J (Ry)   Note: we recommend to use U_eff = U-J and
> J=0
>    2.40 0.00        U J
> ================================
>
>
> ===== structure file =================
> singlelayer_AFMx
> P   LATTICE,NONEQUIV.ATOMS   6   83 P4/m
> MODE OF CALC=RELA unit=bohr
>  10.395383 10.395383 48.803840 90.000000 90.000000 90.000000
> ATOM  -1: X=0.00000000 Y=0.00000000 Z=0.50000000
>           MULT= 1          ISPLIT=-2
> Ir1        NPT=  781  R0=.000005000 RMT= 2.05        Z:  77.00000
> LOCAL ROT MATRIX:    1.0000000 0.0000000 0.0000000
>                      0.0000000 1.0000000 0.0000000
>                      0.0000000 0.0000000 1.0000000
> ATOM  -2: X=0.50000000 Y=0.50000000 Z=0.50000000
>           MULT= 1          ISPLIT=-2
> Ir2        NPT=  781  R0=.000005000 RMT= 2.05        Z:  77.00000
> LOCAL ROT MATRIX:    1.0000000 0.0000000 0.0000000
>                      0.0000000 1.0000000 0.0000000
>                      0.0000000 0.0000000 1.0000000
> ATOM  -3: X=0.00000000 Y=0.50000000 Z=0.42560000
>           MULT= 4          ISPLIT= 8
>       -3: X=0.00000000 Y=0.50000000 Z=0.57440000
>       -3: X=0.50000000 Y=0.00000000 Z=0.42560000
>       -3: X=0.50000000 Y=0.00000000 Z=0.57440000
> Sr         NPT=  781  R0=.000010000 RMT= 2.32        Z:  38.00000
> LOCAL ROT MATRIX:    1.0000000 0.0000000 0.0000000
>                      0.0000000 1.0000000 0.0000000
>                      0.0000000 0.0000000 1.0000000
> ATOM  -4: X=0.50000000 Y=0.50000000 Z=0.42020000
>           MULT= 2          ISPLIT=-2
>       -4: X=0.50000000 Y=0.50000000 Z=0.57980000
> O          NPT=  781  R0=.000100000 RMT= 1.68        Z:   8.00000
> LOCAL ROT MATRIX:    1.0000000 0.0000000 0.0000000
>                      0.0000000 1.0000000 0.0000000
>                      0.0000000 0.0000000 1.0000000
> ATOM  -5: X=0.00000000 Y=0.00000000 Z=0.42020000
>           MULT= 2          ISPLIT=-2
>       -5: X=0.00000000 Y=0.00000000 Z=0.57980000
> O          NPT=  781  R0=.000100000 RMT= 1.68        Z:   8.00000
> LOCAL ROT MATRIX:    1.0000000 0.0000000 0.0000000
>                      0.0000000 1.0000000 0.0000000
>                      0.0000000 0.0000000 1.0000000
> ATOM  -6: X=0.30040000 Y=0.80040000 Z=0.50000000
>           MULT= 4          ISPLIT= 8
>       -6: X=0.69960000 Y=0.19960000 Z=0.50000000
>       -6: X=0.19960000 Y=0.30040000 Z=0.50000000
>       -6: X=0.80040000 Y=0.69960000 Z=0.50000000
> O          NPT=  781  R0=.000100000 RMT= 1.68        Z:   8.00000
> LOCAL ROT MATRIX:    1.0000000 0.0000000 0.0000000
>                      0.0000000 1.0000000 0.0000000
>                      0.0000000 0.0000000 1.0000000
>    8      NUMBER OF SYMMETRY OPERATIONS
> -1 0 0 0.00000000
>  0-1 0 0.00000000
>  0 0-1 0.00000000
>        1
> -1 0 0 0.00000000
>  0-1 0 0.00000000
>  0 0 1 0.00000000
>        2
>  0 1 0 0.00000000
> -1 0 0 0.00000000
>  0 0-1 0.00000000
>        3
>  0 1 0 0.00000000
> -1 0 0 0.00000000
>  0 0 1 0.00000000
>        4
>  0-1 0 0.00000000
>  1 0 0 0.00000000
>  0 0-1 0.00000000
>        5
>  0-1 0 0.00000000
>  1 0 0 0.00000000
>  0 0 1 0.00000000
>        6
>  1 0 0 0.00000000
>  0 1 0 0.00000000
>  0 0-1 0.00000000
>        7
>  1 0 0 0.00000000
>  0 1 0 0.00000000
>  0 0 1 0.00000000
>        8
> ===============================
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