<div dir="ltr"><div><div><div><br clear="all"></div>Dear all,<br></div>I am working on Ti02, doped with Nd3+ as well as Tm3+ . When i put the dopant in the Ti site, the formation energy is between -1 and +1 eV. When i put the dopant in the O site, the formation energy is very high at 634 eV. please someone help me, what could be the cause of this high formation energy.<br></div>Kind regards<br><div><div><div><div class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div>Mulwa Winfred.<br>D Phil Student, Computational Material Science Group,<br>University of the Free State - QwaQwa,<br></div>South Africa.<br></div></div>
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