<div>Dear QE users,<br><br>Two weeks ago, I posted this same question, but I have not received any response from the QE users (see below). Actually, I tried to compute the Raman Tensor of an orthorombic unit cell using the CP.X code and then compare it with the results that I obtain when using the PW.X and PH.X codes. The results are different. That is why, I want to know if one can use the CP.X to compute the Raman Tensor of non-cubic unit cells; could someone in the forum advice me on this regard?<br>
<br>Thank you,<br>S. Sanchez<br><br>=========================================<br></div>
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<div>I have checked the following thread in the Quantum Espresso forum:</div>
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<div><a href="http://www.democritos.it/pipermail/pw_forum/2007-May/006479.html" target="_blank"><font color="#0000ff"><u>http://www.democritos.it/pipermail/pw_forum/2007-May/006479.html</u></font></a></div>
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<div>At the moment, it is not clear to me if the method to compute the atomic</div>
<div>forces under the influence of two force fields using the CP.X code</div>
<div>has been actually implemented for non-cubic lattices. Or is it</div>
<div>the case that the method is only applicable to cubic lattices?</div>
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<div>Thanks,<br>S. Sanchez<br>Researcher<br>=========================================<br></div>