<div dir="auto">I do not think that there is a unique definition of interstitial magnetic moments for each atom -- in APW+lo methods the interstitial states extend over the whole cell. <div dir="auto"><br></div><div dir="auto">The best I can think of is to use the Bader charge, i.e. use "x aim" and "x aim -dn", take the difference (to spin resolve) then compare to the :MM for the relevant atom.</div><div dir="auto"><br></div><div dir="auto">(N.B., "x aim -up" does not look right.)</div><div dir="auto"><br></div><div dir="auto">WRT your other questions, the sign of the spin without -so or a magnetic field is not well defined, you can multiply all by -1 and nothing in the density/energy will change.</div><div dir="auto"><br></div><div dir="auto">The interstitial components do not have to have the same sign, and often do not. Sometimes one spin state is more delocalized, hence more in the interstitial.</div><div dir="auto"><br><div data-smartmail="gmail_signature" dir="auto">--<br>Professor Laurence Marks<br>Department of Materials Science and Engineering, Northwestern University<br><a href="http://www.numis.northwestern.edu" target="_blank" rel="noreferrer">www.numis.northwestern.edu</a><br>"Research is to see what everybody else has seen, and to think what nobody else has thought" Albert Szent-Györgyi</div></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, Jun 23, 2022, 9:26 AM shahrbano rahimi <<a href="mailto:shahrbanorahimi60@gmail.com" target="_blank" rel="noreferrer">shahrbanorahimi60@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><pre style="font-family:courier,"courier new",monospace;font-size:14px;white-space:pre-wrap;margin-top:0px;margin-bottom:0px;color:rgb(0,0,0)">Dear WIEN developers and users: </pre><pre style="font-family:courier,"courier new",monospace;font-size:14px;white-space:pre-wrap;margin-top:0px;margin-bottom:0px;color:rgb(0,0,0)"><pre style="font-family:courier,"courier new",monospace;white-space:pre-wrap;margin-top:0px;margin-bottom:0px">Please let me know:</pre>How I can find the interstitial magnetic moment (MMINT) per atom in a ferromagnetic system with two kinds of magnetic atoms? What is the sign of interstitial magnetic moment (MMINT) per atom? Is it similar to the sign of the MMI of that atom?<br>
<span style="color:rgb(34,34,34);font-family:Arial,Helvetica,sans-serif;font-size:small;white-space:normal">Best Regards,</span><br style="color:rgb(34,34,34);font-family:Arial,Helvetica,sans-serif;font-size:small;white-space:normal"><span style="color:rgb(34,34,34);font-family:Arial,Helvetica,sans-serif;font-size:small;white-space:normal">Shahrbano Rahimi</span>
<br></pre></div>
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