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<p>Dear All,</p>
<p>I am calculating Raman spectra for a crystal structure with the
second-order response as implemented in the phonon-package, and
have 2 questions that are blocking me at this moment:</p>
<p> - It is mentioned in the slides of QE-tutorials and in the
source code (dynmat.f90 subroutine RamanIR) that the formula for
the Raman cross-section is taken from D. Porezag, M. R. Pederson,
Phys. Rev. B 54, 7830-7836 (1996), but I do not see that the
Bose-Einstein statistical factor is implemented as given in Eq.
(5) of that reference. Was that omitted for a reason or am I
looking at the wrong part of the code? <br>
</p>
<p>- Secondly, the Raman intensity is given for the non-polarized
isotropic case. I am working with a crystalline material and was
wondering whether anyone has a script to calculate the Raman
scattering taking also into account polarization of incident and
scattered beam.</p>
<p>That would be most helpful. Many thanks in advance!<br>
</p>
<p>Best regards,</p>
<p> Leonid Kahle</p>
<p><span class="moz-txt-tag">-- </span><br>
</p>
<p><font size="-1">Doctoral Assistant <br>
EPFL STI IMX THEOS <br>
ME-D2 1019 (Bâtiment ME) <br>
Station 9 <br>
CH-1015 Lausanne (Switzerland) </font></p>
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