<p>Dear Elham</p><p>I think usually, for gaussian smearing, 0.2eV is enough for relaxation and 0.05-0.01 eV is good for DOS and magnetic properties. You can always get a good results by setting enough narrow gaussian smearing.</p><p> </p><p>Sincerely</p><div> </div><div><sign signid="99"><div style="color: rgb(144, 144, 144); font-family: Arial Narrow; font-size: 12px;"><br><br><br><br>------------------</div><div style="color: rgb(0, 0, 0); font-family: Verdana; font-size: 14px;"><div><div class="logo" style="margin: 20px 0px 0px; width: 305px; height: 35px; line-height: 35px;"><img src="https://exmail.qq.com/cgi-bin/viewfile?type=logo&domain=sustc.edu.cn"></div><div class="c_detail" style="margin: 10px 0px 0px;"><h4 class="name" style="margin: 0px; line-height: 28px; font-size: 14px; font-weight: bold; -ms-zoom: 1;">庞瑞(PANG Rui)</h4><p class="position" style="margin: 0px; color: rgb(160, 160, 160); line-height: 22px;"></p><p class="department" style="margin: 0px; color: rgb(160, 160, 160); line-height: 22px;">South University of Science and Technology of China/Department of Physics</p><p class="department" style="margin: 0px; color: rgb(160, 160, 160); line-height: 22px;">No.1088,Xueyuan Road, Shenzhen,Guangdong<br></p><p class="phone" style="margin: 0px; color: rgb(160, 160, 160); line-height: 22px;"></p></div></div></div></sign></div><div> </div><div><includetail><div> </div><div> </div><div style="color: rgb(0, 0, 0);"><div style="padding: 2px 0px; font-family: Arial Narrow; font-size: 12px;">------------------ Original ------------------</div><div style="background: rgb(239, 239, 239); padding: 8px; font-size: 12px;"><div id="menu_sender"><b>From: </b> "Elham"<e.chemistry83@gmail.com>;</div><div><b>Date: </b> Wed, Jul 8, 2015 04:28 PM</div><div><b>To: </b> "pw_forum"<pw_forum@pwscf.org>; <wbr></div><div></div><div><b>Subject: </b> Re: [Pw_forum] Smearing Problem</div></div><div> </div><div dir="ltr">Hi Dear experts pwscf<div><br></div><div>I have questions about this topic.</div><div><br></div><div>Prof. Nicola two solution suggested. For every solution for every calculation must be relaxed or scf calculation?</div><div><br></div><div>This is so long calculation for big system for determine best smearing.</div><div><br></div><div>another Question about (-TS) is must be zero?</div><div><br></div><div>Which of them is Best smearing tag for calculation (Gaussian or mv or mp or fd)?</div><div><br></div><div>Thanks so much</div><div><br></div><div>Elham<br><div><br></div></div></div>
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