[Pw_forum] epsilon.x uniaxial material

[Silvia Bakalova]

Hi,

I am using epsilon.x to obtain the dielectric function of uniaxial material
(ibrav= 5 with trigonal symmetry).

However, e.g. the file epsi.dat contains three different values epsi_x
epsi_y epsi_z, while there should be two independent components (for E
perpendicular and parallel to the optical axis, e.g. epsi_x=epsi_y). Could
you, please, think of what the reason could be?

Many thanks,

Silvia


----------------------
Dr. Silvia Bakalova,
Post Doctoral Researcher,
HH Wills Physics Laboratory,
Bristol, BS8 1TL, UK
http://spectra.phy.bris.ac.uk/
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