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Author Topic: Dielectric Constant  (Read 3238 times)

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Offline Tuhin039

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Dielectric Constant
« on: April 5, 2018, 15:25 »
Hello everyone,
I have calculated the dielectric constant of a material, but I did not find the unit of the dielectric constant. I could not able to calculate the excitonic binding energy as this unit is not known to me.
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Offline Petr Khomyakov

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Re: Dielectric Constant
« Reply #1 on: April 5, 2018, 15:58 »
It is the relative permittivity that is outputted in QuantumATK, i.e., it is the dielectric constant in units of vacuum permittivity, ε0 = 8.854187817 x 10^{−12} F⋅m^{−1} (farads per metre), see  https://en.wikipedia.org/wiki/Relative_permittivity and https://en.wikipedia.org/wiki/Vacuum_permittivity.
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