https://www.vasp.at/mmars/day2.pdf

 VASP wil calulate the real and imaginary part of the dielectric function,you can use LOPTICS tag. VASP will calculate the dielectric tensor following Kubo-Greenwood type formula please review at http://cms.mpi.univie.ac.at/vasp/vasp/LOPTICS_frequency_dependent_dielectric_matrix.html or a GW quasi-particle calculation followed by the absorption with the Bethe-Salpeter Equation (BSE) also at http://cms.mpi.univie.ac.at/vasp/vasp/Frequency_dependent_GW_calculations.html

hi see

http://aip.scitation.org/doi/abs/10.1063/1.4831972?journalCode=apl

http://www.nnin.org/research-support/computational-nanotechnology-resources/nnin-computation-nanotechnology-resources

thanks sir .

Thanks Sir

Can anybody tell how to calculate electronic susceptibility from VASP software?

Dear All,

From VASP OUTCAR, how can I know dielectric constant as a number such as 12.2, 14 etc. of any material after static dielectric calculation.