<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><span style="-webkit-text-size-adjust: auto; caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);">It could well be correct - lo-to splitting in low symmetry systems leads to different limits at gamma depending on direction.</span><div style="-webkit-text-size-adjust: auto; caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><br></div><div style="-webkit-text-size-adjust: auto; caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);">Nicola</div><br><div dir="ltr">Sent from a tiny keyboard... Contact info:<div><div>http://theossrv1.epfl.ch/Main/Contact</div></div></div><div dir="ltr"><br><blockquote type="cite">On 17 Sep 2022, at 15:18, Aleksandra Oranskaia <aleksandra.oranskaia@kaust.edu.sa> wrote:<br><br></blockquote></div><blockquote type="cite"><div dir="ltr"><meta http-equiv="Content-Type" content="text/html; charset=utf-8"><div dir="ltr"><div>Dear users and developers,</div><div><br></div><div>I will very appreciate any comments and suggestions on how to deal with the strange step-like shifts at Gamma points. I am facing it with different systems, so it is not system-specific finding.<br></div><div><br></div><div>Please see below phonons without acoustic sum rules application and with "simple" rules.<br><br></div><div>Hope to hear anything.</div><div>Thank you!</div><div><br></div><div><br>-- <br><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div>Best wishes,</div><div>Al.<span style="border-collapse:separate;line-height:normal;text-align:-webkit-auto;text-indent:0px;border-spacing:0px"><span style="text-align:-webkit-auto">,</span></span> phd candidate in chemical sciences<br>'I.. a universe of atoms, an atom in the universe' (Richard P. Feynman)<br><a href="https://cpms.kaust.edu.sa/" target="_blank">https://cpms.kaust.edu.sa/</a></div></div></div></div></div>
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