SCALEE: Difference between revisions

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{{TAGDEF|SCALEE|[real]|1}}
{{TAGDEF|SCALEE|[real]|1}}


Description: This tag specifies the scaling of the energies and forces.
Description: This tag specifies the coupling parameter of the energies and forces between a fully interacting system and a reference system.


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For thermodynamic integration this parameter controls the coupling parameter <math>\lambda</math>.
The tag {{TAG|SCALEE}} sets the coupling parameter <math>\lambda</math> and hence controls the Hamiltonian of the calculation.
By default {{TAG|SCALEE}}=1 and the scaling of the energies and forces via the coupling constant is internally skipped in the code. To enable the scaling {{TAG|SCALEE}}<math>\ne</math>1 has to be specified.


This parameter is only used if {{TAG|SCALEE}}<math>\ne</math>1.
More information using this tag is given [[Thermodynamic integration calculations|here]].  


Usually the thermodynamic integration is carried out from the ideal gas to the liquid state.
== Related tags and articles ==
 
{{TAG|VCAIMAGES}}, {{TAG|IMAGES}}, {{TAG|NCORE IN IMAGE1}}, {{TAG|PHON_NSTRUCT}}, {{TAG|IBRION}}
If the file {{TAG|DYNMATFULL}} exists in the calculation directory and {{TAG|SCALEE}}<math>\ne</math>1, the second order Hessian matrix is added to the force and thermodynamic integration from a harmonic model to a fully interacting system is carried out.
 
== Related Tags and Sections ==
{{TAG|VCAIMAGES}}, {{TAG|IMAGES}}, {{TAG|NCORE IN IMAGE1}}


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[[Category:INCAR tag]][[Category:Advanced molecular-dynamics sampling]]
[[Category:INCAR]][[Category:Molecular Dynamics]][[Category:Thermodynamic integration]]

Latest revision as of 14:05, 16 October 2024

SCALEE = [real]
Default: SCALEE = 1 

Description: This tag specifies the coupling parameter of the energies and forces between a fully interacting system and a reference system.


The tag SCALEE sets the coupling parameter and hence controls the Hamiltonian of the calculation. By default SCALEE=1 and the scaling of the energies and forces via the coupling constant is internally skipped in the code. To enable the scaling SCALEE1 has to be specified.

More information using this tag is given here.

Related tags and articles

VCAIMAGES, IMAGES, NCORE IN IMAGE1, PHON_NSTRUCT, IBRION