ABINIT Discussion Forums

Hi dear friends
I have a problem
During calculation of dielectric functions of various hexagonal crystals (CdSe ...) I found 3 independent dielectric functions as 11 22 and 33
but in fact, It is well known (see Nye, appendix for hexagonals) that:
component 11 should be equal to component 22
and
not 3 but only 2 independent component should exist.

I could not see where the problem is...

Need urgent help

Thanks indeed

Bahattin Erdinc

Dear Bahattin,

please read the nettiquette on the forum main page.