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Thank you Professor Marks and Professor Blaha,</div>
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A mentioned before I ran these two systems</div>
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Graphene + M</div>
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ABNiO<sub>4</sub></div>
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but this time I ran them</div>
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First without "-min"</div>
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then with "-min"</div>
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--</div>
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For</div>
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Graphene + M</div>
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it took many cycles, but it finally converged.</div>
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The same for</div>
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ABNiO<sub>4</sub> </div>
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but it took many more cycles, more than 500, fortunately it took 1 min each cycle</div>
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This time the forces did nor oscillate.</div>
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Pablo</div>
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<b>De:</b> Wien <wien-bounces@zeus.theochem.tuwien.ac.at> en nombre de Peter Blaha <peter.blaha@tuwien.ac.at><br>
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<div style="font-size: 11pt;">A structure optimization of a magnetic structure with several TM atoms<br>
may take many iterations.<br>
<br>
You should probably start out with a normal<br>
<br>
runsp -fc 2 -orb -p -i 80 (it may not converge in 40 cycles ?).<br>
<br>
Then inspect the forces. How large are they ? If they are larger than 5<br>
mRy/bohr, it is probably worth to optimize the structure and you restart<br>
the runsp command using -min<br>
<br>
After a couple of cycles investigate :ENE and :FR<br>
both quantities should go down slowly, but expect jumps, etc.<br>
As I said before, it may take even a couple of 100 cycles in a bad case.<br>
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