<div>Dear users,</div>
<div> </div>
<div> </div>
<div>I am trying to optimize c/a ratio with constant volume. The structure is tetragonal, and it is magnetic material.</div>
<div> </div>
<div>I specified the structure changtes as below</div>
<div>-10</div>
<div>-5</div>
<div>0</div>
<div>+5</div>
<div>+10</div>
<div> </div>
<div>and</div>
<div>When it comes to magnetic material, do I have to choose either "x dstart -up" or "x dstart -dn"?</div>
<div>Can I not use both of them at the same time?</div>
<div> </div>
<div># x dstart -up # -c</div>
<div> </div>
<div>I removed the first #. Do I have to remove the second # too?</div>
<div> </div>
<div>I do not know why I only get errors.</div>
<div>If anybody know what my problem is, please teach me.</div>
<div> </div>
<div> </div>
<div>All my best,</div>
<div>Jihoon Park</div>