All right, so here are the MMTOT data:

Starting point of SCF: 123.85779
Converged: 0.05631

And MMI ones:
Starting point:
:MMINT:  MAGNETIC MOMENT IN INTERSTITIAL  =   71.11022
:MMI001: MAGNETIC MOMENT IN SPHERE   1    =    1.03742
:MMI002: MAGNETIC MOMENT IN SPHERE   2    =    1.03736
:MMI003: MAGNETIC MOMENT IN SPHERE   3    =    0.62202
:MMI004: MAGNETIC MOMENT IN SPHERE   4    =    0.62205
:MMI005: MAGNETIC MOMENT IN SPHERE   5    =    1.03746
:MMI006: MAGNETIC MOMENT IN SPHERE   6    =    0.62203
:MMI007: MAGNETIC MOMENT IN SPHERE   7    =    0.62196
:MMI008: MAGNETIC MOMENT IN SPHERE   8    =    1.03238
:MMI009: MAGNETIC MOMENT IN SPHERE   9    =    0.62236
:MMI010: MAGNETIC MOMENT IN SPHERE  10    =    0.29692

Converged:
:MMINT:  MAGNETIC MOMENT IN INTERSTITIAL  =    0.04102
:MMI001: MAGNETIC MOMENT IN SPHERE   1    =    0.00000
:MMI002: MAGNETIC MOMENT IN SPHERE   2    =   -0.00015
:MMI003: MAGNETIC MOMENT IN SPHERE   3    =    0.00028
:MMI004: MAGNETIC MOMENT IN SPHERE   4    =    0.00029
:MMI005: MAGNETIC MOMENT IN SPHERE   5    =   -0.00003
:MMI006: MAGNETIC MOMENT IN SPHERE   6    =    0.00030
:MMI007: MAGNETIC MOMENT IN SPHERE   7    =    0.00027
:MMI008: MAGNETIC MOMENT IN SPHERE   8    =    0.00104
:MMI009: MAGNETIC MOMENT IN SPHERE   9    =    0.00038
:MMI010: MAGNETIC MOMENT IN SPHERE  10    =    0.00128

Obviously the system converges towards a non-spin polarized state.

From the literature, there has been some experimental investigation on, e.g., 
Pb(1-x)Tl(x)Te (x=0.001-0.02). One can read: [..] Various mechanisms** which 
can lead to observable anomalies, including Kondo-like behavior of a 
non-magnetic degenerate two-level system are discussed.

So maybe the structure is non-magnetic.

** related to thermoelectric power

Now let’s say I want to make sure this is a non-magnetic compound by enforcing 
a magnetic state (in which case the total energy should be higher than for the 
non-magnetic state), I should run runfsm_lapw and change case.inst to enforce a 
spin polarization right at the beginning, shouldn’t I?


Pascal



> Le 30 oct. 2022 à 14:04, fabien.t...@vasp.at a écrit :
> 
> Dear Pascal,
> 
> Depending on the system it may be possible to stabilize more than one 
> magnetic state. In such cases, the magnetic state obtained at the end of the 
> calculation typically depends on the initial magnetic state when starting the 
> calculation. What was the initial magnetic state in your calculation? Grep 
> for :MMTOT (total moment in cell) or :MMI (moment on atoms) in case.scf to 
> see how these quantities evolved during the SCF procedure. Is Pb31TlTe32 
> supposed to be magnetic according to experiment?
> 
> On 30.10.2022 13:07, pboulet wrote:
>> Dear all,
>> I am investigating Pb31TlTe32 in which Tl is the only element that
>> bring an odd number of electrons.
>> I have set up a spin-polarized calculation with init_lapw, but not
>> with an anti-ferromagnetic state.
>> As a starting point, I do not include spin-orbit and I use PBE.
>> NOE=959 in the structure.
>> After converging the SCF, I end up with the following (to me strange)
>> occupation states:
>> For spin up:
>> :BAN00479: 479    0.272337    0.309267  1.00000000
>> :BAN00480: 480    0.283605    0.328642  0.50431432
>> :BAN00481: 481    0.371927    0.455285  0.00000000
>> For spin down:
>> :BAN00479: 479    0.272405    0.309306  1.00000000
>> :BAN00480: 480    0.283720    0.328787  0.49568569
>> :BAN00481: 481    0.372018    0.455369  0.00000000
>> I rather expected to have 480 spin up occupied states with 1 electron
>> and 479 spin down occupied states with 1 electron, but I have
>> something like a closed-shell spin polarized state.
>> Is it what we should expect?
>> If not, could you please explain me what happens and eventually how to
>> remedy this to have a ‘real’ spin polarized state?
>> Thank you
>> Pascal
>> Pascal Boulet
>> —
>> _Professor in computational materials chemistry - DEPARTMENT OF
>> CHEMISTRY_
>> University of Aix-Marseille - Avenue Escadrille Normandie Niemen -
>> F-13013 Marseille - FRANCE
>> Tél: +33(0)4 13 55 18 10 - Fax : +33(0)4 13 55 18 50
>> Email : pascal.bou...@univ-amu.fr
>> _______________________________________________
>> Wien mailing list
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> _______________________________________________
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Pascal Boulet
—
Professor in computational materials chemistry - DEPARTMENT OF CHEMISTRY
University of Aix-Marseille - Avenue Escadrille Normandie Niemen - F-13013 
Marseille - FRANCE
Tél: +33(0)4 13 55 18 10 - Fax : +33(0)4 13 55 18 50
Email : pascal.bou...@univ-amu.fr <mailto:pascal.bou...@univ-amu.fr>




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