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<p>Dear Prof Blaha, Prof Tran and Wien2k user,</p>
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<p>With reference to an earlier post related to FeO and Fe2O3 which showed the procedure of doing constrained LSDA+U calculations using - orbc. See:
<a href="http://zeus.theochem.tuwien.ac.at/pipermail/wien/2015-December/024014.html" class="OWAAutoLink" id="LPlnk470748" previewremoved="true">
http://zeus.theochem.tuwien.ac.at/pipermail/wien/2015-December/024014.html</a></p>
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<p>I did not see "orbc" program in version 16.1. So how can I proceed doing and executing
<u><span style="color: rgb(0, 111, 201);">step 3</span></u> indicated the following steps that were mentioned by Tran and I quote here</p>
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<pre>1) change manually the occupation (that you need to know) in
case.dmatup/dn of a LDA+U calculation,
2) execute "x orb -up/dn" to generate case.vorbup/dn
<span style="color: rgb(0, 111, 201);"></span><u><span style="color: rgb(0, 111, 201);">3) run LDA+U with -orbc instead of -orb</span></u>
4) save the contrained calculation when it is finished
4) run LDA+U or mBJ as usual."<br><br></pre>
Osama<br>
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