Hello, Everyone.
When i finished the NLO calculation, i find the code caculated the electronic dielectric tensor. i known the dielectric tensor is a funcion with wavelength, so i wonder the dielectric tensor gived here related to which wavelength. Besides, i known the dielectric constant is the square of the refractive index, is these parameters that the code gived is somewhat related to the Sellmeier equations to determine the refractive index .
Thanks in advanced
Zhang Xiaole
A question about the Electronic Dielectric Tensor
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Zhang Xiaole
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A question about the Electronic Dielectric Tensor
Phd student
Phys Department
Shanghai JiaoTong university, Shanghai, China
Phys Department
Shanghai JiaoTong university, Shanghai, China
Re: A question about the Electronic Dielectric Tensor
The DFPT coded in abinit is for a static electric field. The frequency dependence which does appear is for the phonon contribution to the dielectric constant.
You need to be more specific - are you using optic? anaddb?
I don't know about the Sellmeier equations... You can always calculate n and reflectivity from the dielectric constants.
Matthieu
You need to be more specific - are you using optic? anaddb?
I don't know about the Sellmeier equations... You can always calculate n and reflectivity from the dielectric constants.
Matthieu
Matthieu Verstraete
University of Liege, Belgium
University of Liege, Belgium