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Why not use occupations=‘fixed’?
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<div>Cheers,</div>
<div>Vahid<br>
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<div>On May 24, 2024, at 5:53 PM, Md. Jahid Hasan Sagor <md.sagor@maine.edu> wrote:</div>
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<span style="font-weight:bold;font-size:12px;">CAUTION:</span> The Sender of this email is not from within Dalhousie.</div>
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<div dir="ltr">Hi Lorenzo,
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<div>Thank you for your response. But Here I am using GaAs, it's a semiconductor, but still I am getting the message.</div>
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<div>Thanks</div>
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<div>Best</div>
<div>Hasan</div>
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<div dir="ltr" class="gmail_attr">On Fri, May 24, 2024 at 4:51 PM Lorenzo Bastonero <<a href="mailto:lbastone@uni-bremen.de">lbastone@uni-bremen.de</a>> wrote:<br>
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<div>Hello,
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<div>Dielectric constant in metals is “infinite”. There’s no static response to a static electric field (you would generate an electric current).</div>
<div>As such, any long-range correction to the force-constants is not needed in metals, if that is the reason why you were trying to compute these quantities.</div>
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<div>Best,</div>
<div>Lorenzo</div>
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<div>********************************</div>
<div>Lorenzo Bastonero</div>
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<div>PhD Student</div>
<div>U Bremen Excellence Chair,<br>
Bremen Center for Computational Materials Science,<br>
and MAPEX Center for Materials and Processes</div>
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<div>University of Bremen</div>
<div>Faculty of Production Engineering</div>
<div>TAB-Building, Room 3.32</div>
<div>Am Fallturm 1</div>
<div>28359 Bremen, DE</div>
<br>
<a href="http://www.hmi.uni-bremen.de/" target="_blank">http://www.hmi.uni-bremen.de/</a></div>
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<div>Il giorno 24 mag 2024, alle ore 22:20, Md. Jahid Hasan Sagor <<a href="mailto:md.sagor@maine.edu" target="_blank">md.sagor@maine.edu</a>> ha scritto:</div>
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<div>Hi Dear QE Experts,</div>
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<div>I am trying to calculate second order force constants for GaAs. I successfully ran pw.x, but after that when I ran ph.x, I got the following error.
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<div><b>ask # 0 from phq_readin : error # 1 no electric. field with metals</b></div>
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<div>Input files are attached here. I have used epsil = .true. for phonon calculation to calculate born charge and dielectric constant.
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<div>Would you please give some solutions for this?</div>
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<div>Best</div>
<div>Md Jahid Hasan</div>
<div>Mechanical Engg</div>
<div>PhD Student</div>
<div>University of Maine<br>
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