<html><head></head><body><div style="color:#000; background-color:#fff; font-family:times new roman, new york, times, serif;font-size:16px"><div id="yui_3_16_0_ym19_1_1546539832038_13325">Dear users and developers</div><div id="yui_3_16_0_ym19_1_1546539832038_13326"><br id="yui_3_16_0_ym19_1_1546539832038_13327"></div><div dir="ltr" id="yui_3_16_0_ym19_1_1546539832038_13328">I
need to calculate the second/third order force constant for a magnetic
system, (ferromagnetic). Is it possible with Quantum espresso? I
searched in the information for ph.x, and couldn't find any related
parameters.</div><div dir="ltr" id="yui_3_16_0_ym19_1_1546539832038_13329"><br id="yui_3_16_0_ym19_1_1546539832038_13330"></div><div dir="ltr" id="yui_3_16_0_ym19_1_1546539832038_13331">If I do scf.in including nspin=2 and starting magnetization and then the ph.x as normal way, will this give what I want?</div><div dir="ltr" id="yui_3_16_0_ym19_1_1546539832038_13332"><br id="yui_3_16_0_ym19_1_1546539832038_13333"></div><div dir="ltr" id="yui_3_16_0_ym19_1_1546539832038_13334">Thank you for your time</div><div dir="ltr" id="yui_3_16_0_ym19_1_1546539832038_13335"><br id="yui_3_16_0_ym19_1_1546539832038_13336"></div><div dir="ltr" id="yui_3_16_0_ym19_1_1546539832038_13337"><div dir="ltr" id="yui_3_16_0_ym19_1_1546539832038_13340">Shayam</div><div dir="ltr" id="yui_3_16_0_ym19_1_1546539832038_13342">PhD candidate</div><div dir="ltr" id="yui_3_16_0_ym19_1_1546539832038_13343">Uof Regina,ca<br></div></div></div></body></html>