Dear Mr.
<span style="color: rgb(32, 33, 36); font-family: Roboto, Arial, sans-serif; letter-spacing: 0.25px; white-space: nowrap;">Watkins</span><div><font color="#202124" face="Roboto, Arial, sans-serif"><span style="letter-spacing: 0.25px; white-space: nowrap;"><br /></span></font></div><div><font color="#202124" face="Roboto, Arial, sans-serif"><span style="letter-spacing: 0.25px; white-space: nowrap;">Thank you for your comments.</span></font></div><div><font color="#202124" face="Roboto, Arial, sans-serif"><span style="letter-spacing: 0.25px; white-space: nowrap;">I just obtained the phonon DOS using finite displacement method. The reference manual is that written in the website of CP2K:</span></font></div><div>https://www.cp2k.org/exercises:2017_uzh_cmest:phonon_calculation</div><div>There are 200 carbon atoms in my amorphous system. I don't know why the strange oscillations appear on the right side of DOS. Could you please give me some suggestions ?</div><div><br /></div><div>Yue Qiang<br /><br /></div><div class="gmail_quote"><div dir="auto" class="gmail_attr">在2023年10月4日星期三 UTC+9 14:52:28<Matt Watkins> 写道:<br/></div><blockquote class="gmail_quote" style="margin: 0 0 0 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">Hi,<div>we'd need to know what you did to calculate the DoS to provide sensible comments.</div><div>Matt<br><br></div><div class="gmail_quote"><div dir="auto" class="gmail_attr">On Friday, 29 September 2023 at 03:02:05 UTC+1 Moon Yue wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">hello, cp2k forum. Recently, I calculated density of phonon states for a amorphous carbon system. But there were some strange oscillations in the high frequency. <div>Is there someone can help me to solve this problem ?</div><div><br></div><div><br><img alt="1.png" width="321px" height="273.403px" src="https://groups.google.com/group/cp2k/attach/643e81be1b7d/1.png?part=0.1&view=1"></div><div><br></div><div>Yue Qiang</div></blockquote></div></blockquote></div>
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