<div dir="ltr">Dear Sir,<br>How to calculate frequency dependent  electronic and the static  dielectric permittivity tensors  for  phonon  modes at Gamma point in Quantum espresso. The unit cell contain 24 atoms,it is semiconductor material. please suggest if any code for this calculation.<br><br clear="all"><div><br>-- <br><div class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><span style="background-color:rgb(0,0,0)"><span><div style="font-family:arial;font-size:small">M. Ramesh<br></div><div style="font-family:arial;font-size:small">Research Scholar</div><div style="font-family:arial;font-size:small">Department of Physics</div><div style="font-family:arial;font-size:small">IIT Hyderabad</div></span></span></div></div>
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