[Wien] XMCD S K-edge

Peter Blaha pblaha at theochem.tuwien.ac.at
Mon Feb 1 16:23:12 CET 2021


Have you tried to put these 2 S-1s eigenvalues for E1 and E2 ?

PS: XMCD was contributed by a user. I've never tried XMCD by myself. Did 
you try to repeat the results in the published paper ?

Am 01.02.2021 um 15:06 schrieb KRISH:
> Prof. Peter Blaha,
> 
> I used spin polarized + spin-orbit calculation. I have got the spin-up 
> and spin-dn S-1s core energies.
> Here are the core energy values:
> cas.scfcup
>          1.ATOM      S                     4 CORE STATES
> :1S 001: 1S                -175.485261107 Ry
> :2S 001: 2S                 -14.238881461 Ry
> :2PP001: 2P*                -10.241763425 Ry
> :2P 001: 2P                 -10.149047898 Ry
> 
> cas.scfcdn
>          1.ATOM      S                     4 CORE STATES
> :1S 001: 1S                -175.486319774 Ry
> :2S 001: 2S                 -14.239790578 Ry
> :2PP001: 2P*                -10.243054336 Ry
> :2P 001: 2P                 -10.150333457 Ry
> 
> How can I resolve the issue? Could you help me?
> 
> Thank you.
> KRISH
> 
> On Sun, 31 Jan 2021 at 15:26, KRISH <krish.odc at gmail.com 
> <mailto:krish.odc at gmail.com>> wrote:
> 
>     Dear Wien2k Users,
> 
>     My question is, I am not sure, how to choose the core_E2 value.
> 
>     The only core values available for S-atom in the SCF file are:
> 
>         1.ATOM S 4 CORE STATES
> 
>     :1S 001: 1S -175.486319774 Ry
> 
>     :2S 001: 2S -14.239790578 Ry
> 
>     :2PP001: 2P* -10.243054336 Ry
> 
>     :2P 001: 2P -10.150333457 Ry
> 
> 
>     If I select Core_E2 as -175.486 and Core_E1 as any one of the
>     remaining values, I get NAN in the produced case.xmcd file for
>     RIGHT_POL, LEFT_POL, and XAS;. Has anyone ever tried K-edge XMCD?
>     Could someone help me?
> 
>     Best regards,
> 
>     KRISH
> 
> 
> 
>     On Mon, 25 Jan 2021 at 16:00, KRISH <krish.odc at gmail.com
>     <mailto:krish.odc at gmail.com>> wrote:
> 
>         Dear WIEN2k users,
> 
>         The above mentioned case.injoint input file gives me syntax
>         error when I do
>         x joint -up
> 
>         forrtl: severe (59): list-directed I/O syntax error, unit 5, file /home/krish/WIEN2k/us-lsda-op-xm2/us-lsda-op-xm2.injoint
>         Image              PC                Routine            Line        Source
>         joint              0000000000420A0E  Unknown               Unknown  Unknown
>         joint              0000000000443534  Unknown               Unknown  Unknown
>         joint              000000000040B368  MAIN__                    196  joint.f
>         joint              0000000000402E5E  Unknown               Unknown  Unknown
>         libc-2.17.so  <http://libc-2.17.so/>        00002B6258A68C05  __libc_start_main     Unknown  Unknown
>         joint              0000000000402D69  Unknown               Unknown  Unknown
>         0.002u 0.003s 0:00.00 0.0%	0+0k 0+8io 0pf+0w
>         error: command   /opt/ohpc/pub/wien2k/18.2/joint upjoint.def   failed
> 
> 
>         I am not sure how to fix this. Could someone help me?
> 
>         Thank you.
>         KRISH
> 
>         On Fri, 22 Jan 2021 at 18:14, KRISH <krish.odc at gmail.com
>         <mailto:krish.odc at gmail.com>> wrote:
> 
>             Dear Wien2k Users,
> 
>             I am using wien2k 18.2 for the computation of XMCD spectra.
>             I tried to compute S K-edge XMCD spectra for my system (US).
>             However, whilst doing that I encountered a problem for the
>             specification K-edge values in the case.injoint file.
>             The injoint is given below.
>             /
>             /
>             /*1  9999 9999              : LOWER,UPPER and (optional)
>             UPPER-VAL BANDINDEX
>             -0.0000    0.00100   1.0000 : EMIN DE EMAX FOR ENERGYGRID IN ryd
>             eV                            : output units  eV / ryd  / cm-1
>             XMCD                          : omitt these 4 lines for non-XMCD
>             -175.4856               : core energies in Ry (grep :1S
>             case.scf) /S K-edge
>             1.6  0.6                      : core-hole broadening (eV)
>             for both core states
>             0.1                           : spectrometer broadening (eV)
>                   6                        : SWITCH
>                   4                        : SWITCH
>                   2                        : NUMBER OF COLUMNS
>                 0.1  0.1  0.3              : BROADENING (FOR DRUDE MODEL
>             - switch 6,7 -
>             ONLY)*
>             /
>             /
>             /
>             For the M45 edge we specify 3D and 3D* edge values in Ryd. I
>             am not sure about the K-edge. The only core values available
>             for S-atom in the SCF file are:
> 
>                 1.ATOM S 4 CORE STATES
> 
>             :1S 001: 1S -175.486319774 Ry
> 
>             :2S 001: 2S -14.239790578 Ry
> 
>             :2PP001: 2P* -10.243054336 Ry
> 
>             :2P 001: 2P -10.150333457 Ry
> 
> 
>             Can someone help, how can I select the higher core energy?
> 
> 
>             The corresponding case.inop file is given below:
> 
>             /*9999 1       number of k-points, first k-point
>             -10.0 10.0 9999 Emin, Emax for matrix elements, NBvalMAX
>             XMCD 1 K      optional line: for XMCD of 1st atom and K-edge
>             6             number of choices (columns in *outmat): 2: hex
>             or tetrag. case
>             1             Re xx
>             2             Re yy*/
> 
>             /*OFF           ON/OFF   writes MME to unit 4 */
> 
>             Am I missing anything here? Could someone help?
> 
>             Thanks in advance.
> 
> 
>             Best regards,
> 
>             KRISH
> 
> 
> 
> 
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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    WIEN2k: http://www.wien2k.at
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