<br clear="all">In the forum I have seen the statement like doing scf calculation for an isolated atom is tricky. Can somebody explain me why is this so? and then while testing a pseudo potential is it a good idea to calculate cohesive energies (which involves isolated atom) and compare as we do for lattice parameter and bulk modulus.<br>
-- <br>U.Saibabu<br>PhD student,<br>Deformation mechanisms modeling group,<br>Materials engineering department,<br>IISc Bangalore,<br>India.<br><br>