<html>
<head>
<style><!--
.hmmessage P
{
margin:0px;
padding:0px
}
body.hmmessage
{
font-size: 12pt;
font-family:Calibri
}
--></style></head>
<body class='hmmessage'><div dir='ltr'>Dear All,<div><br></div><div>I am getting an error as </div><div><br></div><div><div> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%</div><div> Error in routine find_mode_sym (1):</div><div> unknown mode symmetry</div><div> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%</div><div><br></div><div> stopping ...</div><div> unknown mode symmetry</div><div> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%</div></div><div><br></div><div>I am using PHONON v.5.4.0, the structure is a fully relaxed. The structure is a dumbell stanene.</div><div><br></div><div>Regards,</div><div>Ghadiyali Mohammed Kader</div> </div></body>
</html>