<table cellspacing="0" cellpadding="0" border="0" ><tr><td valign="top" style="font: inherit;">Hi all<br><br>I have a doubt regarding the value of celldm(1) in the input file for a supercell calculations. Celldm(1) is the lattice constant value. If I am using a supercell constructed by expanding the original lattice constant 'a' 2 times in all direction, then what will be the value of celldm(1) now? Will it be the original lattice constant 'a' or '2a'?<br><br>Thanks in advance<br>Regards<br>Padmaja Patnaik<br>
Research Scholar<br>
Dept of Physics<br>
IIT Bombay<br>
Mumbai, India</td></tr></table>