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<div style="direction: ltr;font-family: Tahoma;color: #000000;font-size: 10pt;"><font face="Courier New">Dear <span style="background-color: rgb(255, 255, 255); font-size: 14px; white-space: pre-wrap;">Subhodip,</span></font>
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<div><font face="Courier New"><span style="font-size: 14px; white-space: pre-wrap;">If you maintain the lattice constant resulting from vc-relax then the pressure effect should be there in your phonon calculations. You apply the pressure by constraining the
volume.</span></font></div>
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<div><font face="Courier New"><span style="font-size: 14px; white-space: pre-wrap;">Regards,</span></font></div>
<div><font face="Courier New"><span style="font-size: 14px; white-space: pre-wrap;">Mostafa</span></font></div>
<div><font face="Courier New"><span style="font-size: 14px; white-space: pre-wrap;">MIT<br>
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