EPSILON: Difference between revisions

From VASP Wiki
No edit summary
No edit summary
Line 16: Line 16:
{{sc|EPSILON|Examples|Examples that use this tag}}
{{sc|EPSILON|Examples|Examples that use this tag}}
----
----
[[The_VASP_Manual|Contents]]
[[Category:INCAR]][[Category:Molecules]][[Category:Monopole Dipole and Quadrupole Corrections]]
 
[[Category:INCAR]]

Revision as of 16:29, 16 April 2019

EPSILON = [real]
Default: EPSILON = 1 

Description: EPSILON sets the dielectric constant of the medium.


VASP uses this flag only to scale the calculated monopole and dipole corrections. EPSILON defaults to 1, which is the proper value for isolated atoms and molcules. For solids, the screening properties can and should be determined using the linear response routines of VASP (see LEPSILON and/or LCALCEPS). Ionic contributions to the dielectric tensor should be included, if the ions are allowed to relax. Ionic contributions to the dielectric tensor can be calculated using IBRION=8.

Related Tags and Sections

Monopole Dipole and Quadrupole corrections, NELECT, DIPOL, IDIPOL, LDIPOL, LMONO, EFIELD

Examples that use this tag