Hi mariam, a possible criteria to choose a good position is using the position with minimal total energy.<br><br>please provide you affiliation <br><br>PhD stud Arles V. Gil Rebaza<br>IFLP - Argentine<br><br><div class="gmail_quote">
2011/10/8 mariam malmir <span dir="ltr"><<a href="mailto:mariammalmir86@gmail.com">mariammalmir86@gmail.com</a>></span><br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
i doped one atom on carbon nanotube in few positions.<br>how understand which position is good?<br>thanks<br>
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<br></blockquote></div><br><br clear="all"><br>-- <br>###---------> Arles V. <---------###<br>