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<div dir="ltr">Hi</div><div dir="ltr"><br></div><div dir="ltr">As I understand from Phonon and QHA examples calculation of entire phonon dispersion <font face="arial, helvetica, sans-serif" size="3">is necessary to calculate and prepare fc file then Thermodynamic properties like Gibbs energy. I wonder if it is possible to avoid calculating entire phonon dispersion for a very large system say 160 atoms to calculate its Gibbs energy or not. I appreciate any help in advance. </font><div><br></div><div><br></div><div><div style="line-height: 21px; color: rgb(68, 68, 68); font-size: 15px;"><h5 style="font-size: 15px; font-weight: normal; margin: 0px 0px 5px; padding: 0px; border: 0px;"><font color="#333333" face="verdana, tahoma" size="2" style="line-height: normal;"><span style="line-height: 19px;">-------------------------------------------------</span></font></h5><div><font color="#333333" face="verdana, tahoma" size="2" style="line-height: normal;"><span style="line-height: 19px;">Alex Granov</span></font></div><h5 style="font-size: 15px; font-weight: normal; margin: 0px 0px 5px; padding: 0px; border: 0px;"><font color="#333333" face="verdana, tahoma" style="line-height: normal;"><span style="line-height: 19px;"><font size="2" style="line-height: normal;">Московский физико-технический институт </font><font size="1" style="line-height: normal;">(</font></span></font><span style="line-height: 1.5; color: rgb(51, 51, 51); font-family: verdana, tahoma;"><font size="1" style="line-height: normal;">MIPT)</font></span></h5></div><div style="line-height: 21px; color: rgb(68, 68, 68); font-size: 15px;"><h5 style="line-height: 1.5; font-size: 15px; font-weight: normal; margin: 0px 0px 5px; padding: 0px; border: 0px; font-family: verdana, tahoma; color: rgb(51, 51, 51);"><font size="2" style="line-height: normal;">Moscow, Russia</font></h5></div></div></div>
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