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static dielectric tensor ionic contribution and epsilon_o

Posted: Thu Jan 08, 2015 6:21 pm
by Sokseiha
Dear all VASP users,

I'm using VASP to calculate the dielectric constant (both high frequency epsilon_inf and static epsilon_o) with LEPSILON=.TRUE. and IBRION = 8. I want to compare the results with the experiments. I know that the value of dielectric constant printed after "MACROSCOPIC STATIC DIELECTRIC TENSOR (including local field effects in DFT)" can be compared with epsilon_inf from experiment, but what about the value printed after MACROSCOPIC STATIC DIELECTRIC TENSOR IONIC CONTRIBUTION ? Can I compare it directly with epsilon_o from experiment?
Thank you in advance for your help.

Best,
Seiha.

Re: static dielectric tensor ionic contribution and epsilon_o

Posted: Thu Sep 12, 2024 7:44 am
by support_vasp

Hi,

We're sorry that we didn’t answer your question. This does not live up to the quality of support that we aim to provide. The team has since expanded. If we can still help with your problem, please ask again in a new post, linking to this one, and we will answer as quickly as possible.

Best wishes,

VASP