Dear All,
In the Pseudo potential scheme,I have a confusion.For Si Pseudo Potential ,The
Pseudopotential core radii for all channels are 1.90 Bohrs(for all s,p
,d,f).Why we have to take d,f for defining pseudo core as d and f are specified
as valence orbitals.and also
in the pseudo potential database for Na ,eventhough they did not include d,f
orbitals in their valence ,cut off radii for d,f channels have been specified.I
would appreciate ,if you anyone answer it.
Sincerely
Kugan
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