[Wien] partial DOS and total DOS
Stefaan Cottenier
Stefaan.Cottenier at fys.kuleuven.be
Thu Jan 4 12:36:17 CET 2007
The s- and p-DOS is withing the spheres only. The interstitial DOS
cannot be split into s-, p-, d-contributions. Simple test for your case:
plot the interstitial contribution (for your case a line with '3 1' in
case.int) and make the sum again.
Stefaan
>Dear Wien users,
>I entountered a problem in matching the partial DOS of each atom to the
>total DOS of the material. The material contains only Mg (atom1,
>multiplicity=2) and Si (atom2, multiplicity=1). I calculated the total,
>Mg-s,p and Si-s,p density of states.
>However, problem occured when I compared the total DOS with the sum of
>weighted atomic partial DOS.
>
>case.int
>ATOM 1 tot,0,1,2,D-eg,D-t2g,3
>ATOM 2 tot,0,1,2,D-eg,D-t2g,3
>********************
>-0.50 0.002 1.500 0.003 EMIN, DE, EMAX, Gauss-broadening(>;de)
> 5 NUMBER OF DOS-CASES specified below
> 0 1 total atom, case=column in qtl-header, label
> 1 2 Mg s
> 1 3 Mg p
> 2 2 Si s
> 2 3 Si p
>*******************
>
>part of case.dos1ev
>*********************
>energy total Mg-s Mg-p Si-s Si-p
>-1.98277 2.00534225 0.05024105 0.14825624 0.02962027 0.60823357
>-1.95556 2.06442499 0.04905552 0.15406883 0.02914895 0.63181162
>-1.92835 2.02583766 0.04778546 0.15044349 0.02866209 0.62284130
>-1.90114 1.98196876 0.04653511 0.14624690 0.02820274 0.61220896
>-1.87393 1.99044991 0.04536311 0.14697947 0.02777631 0.61907011
>*********************
>
>As you can see, the sum (column3+column4)*2+(column5+column6) is not equal
>to column2. Column2 is the total DOS (inside sphere+instital). Does the
>partial DOS for s or p also include the corresponding interstital states?
>If it does not, where can I get those interstial states and add them to
>match the total. If it does, what are the possible mistakes which can
>cause the mismatch? I it contains the interstitial states since the
>userguide says just summing ove them with consideration of multiplicity.
>
>
>Many thanks
>
>Shu Miao
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>Wien at zeus.theochem.tuwien.ac.at
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>
>
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