Imaginary Dielectric Constant of Silicon

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Vahid Askarpour
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Imaginary Dielectric Constant of Silicon

#1 Post by Vahid Askarpour » Sat Feb 19, 2011 7:21 pm

Dear VASP users,

I have followed the GW and GW0 calculations on silicon as outlined in the manual. The corrected gap values appear OK. The imaginary dielectric function, as printed in the OUTCAR under "inverse of the dielectric matrix", consists of two numbers printed between the energy and "Dielectric Constant". Does anyone know what these two numbers refer to? I'm guessing one of them is the imaginary dielectric constant. However, my understanding is that the imaginary dielectric constant is positive. I get some negative values for both these numbers for silicon.

I'd appreciate your input.

Vahid

Vahid Askarpour
Physics Department
Dalhousie University
Halifax, Canada

<span class='smallblacktext'>[ Edited ]</span>
Last edited by Vahid Askarpour on Sat Feb 19, 2011 7:21 pm, edited 1 time in total.

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Re: Imaginary Dielectric Constant of Silicon

#2 Post by support_vasp » Wed Sep 11, 2024 2:36 pm

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.

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