Sorry I mistook isotopes as allotropes. <br><br><div class="gmail_quote">On Mon, Jan 16, 2012 at 6:34 PM, Stefano de Gironcoli <span dir="ltr"><<a href="mailto:degironc@sissa.it">degironc@sissa.it</a>></span> wrote:<br>
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    from the electronic point of view, all isotopes are the same.<br>
    what is different for different isotopes is their mass, which enters
    in the vibrational contribution to the free energy.<br>
    <br>
    stefano<div class="im"><br>
    <br>
    On 01/16/2012 06:08 AM, Mahdi Faghih nasiri wrote:
    </div><blockquote type="cite">
      <pre>Dear all,
How can we distinguish between the isotopes of an elementin pwscf?
 
Mahdi Faghih nasiri
MSC,
Guilan University,
Rasht, Iran.
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      <pre><fieldset></fieldset>
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<br></blockquote></div><br><br clear="all"><div><br></div>-- <br>Regards,<br>MOHNISH,<br>-----------------------------------------------------------------<br>Mohnish Pandey<div>BTech-Mtech, IIT Kanpur<br>Senior Project Associate,<br>
Department of Chemical Engineering,<br>IIT KANPUR, UP, INDIA<br>-----------------------------------------------------------------</div><br>