AMIN: Difference between revisions

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{{TAGDEF|AMIN|[real]|min(0.1,{{TAG|AMIX}},{{TAG|AMIX_MAG}})}}
{{TAGDEF|AMIN|[real]|min(0.1,{{TAG|AMIX}},{{TAG|AMIX_MAG}})}}


Description: {{TAG|AMIN}} specifies the minimal mixing parameter in Kerker's initial approximation{{cite|kerker:prb:1981}} to the charge dielectric function used in the Broyden{{Cite|bluegel:phd:1988}}{{cite|johnson:prb:1988}}/Pulay{{cite|pulay:cpl:1980}} mixing scheme ({{TAG|IMIX}}=4, {{TAG|INIMIX}}=1).
Description: {{TAG|AMIN}} specifies the minimal mixing parameter in Kerker's initial approximation{{cite|kerker:prb:1981}} to the charge-dielectric function used in the Broyden{{Cite|bluegel:phd:1988}}{{cite|johnson:prb:1988}}/Pulay{{cite|pulay:cpl:1980}} mixing scheme ({{TAG|IMIX}}=4, {{TAG|INIMIX}}=1).
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Kerker's initial approximation{{cite|kerker:prb:1981}} for the charge dielectric function is given by
Kerker's initial approximation{{cite|kerker:prb:1981}} for the charge-dielectric function is given by
:<math>A\times\min\left(\frac{G^2}{G^2+B^2},A_{\rm min}\right)</math>
:<math>A\times\min\left(\frac{G^2}{G^2+B^2},A_{\rm min}\right),</math>
where <math>A</math>={{TAG|AMIX}}, <math>B</math>={{TAG|BMIX}}, and <math>A_{\rm min}</math>={{TAG|AMIN}}.
where <math>A</math>={{TAG|AMIX}}, <math>B</math>={{TAG|BMIX}}, and <math>A_{\rm min}</math>={{TAG|AMIN}}.


== Related Tags and Sections ==
== Related tags and articles ==
{{TAG|IMIX}},
{{TAG|IMIX}},
{{TAG|INIMIX}},
{{TAG|INIMIX}},
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== References ==
== References ==


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[[The_VASP_Manual|Contents]]
[[The_VASP_Manual|Contents]]


[[Category:INCAR]][[Category:Electronic Minimization]][[Category:Density Mixing]]
[[Category:INCAR]][[Category:Electronic Minimization]][[Category:Density Mixing]]

Revision as of 17:17, 1 April 2022

AMIN = [real]
Default: AMIN = min(0.1,AMIX,AMIX_MAG

Description: AMIN specifies the minimal mixing parameter in Kerker's initial approximation[1] to the charge-dielectric function used in the Broyden[2][3]/Pulay[4] mixing scheme (IMIX=4, INIMIX=1).


Kerker's initial approximation[1] for the charge-dielectric function is given by

where =AMIX, =BMIX, and =AMIN.

Related tags and articles

IMIX, INIMIX, MAXMIX, AMIX, BMIX, AMIX_MAG, BMIX_MAG, MIXPRE, WC

Examples that use this tag

References

Contents