[Wien] Strange results lapwdm

David Tompsett dat36 at cam.ac.uk
Wed Jun 6 14:11:20 CEST 2012


Dear All,

I have been attempting to use lapwdm to obtain the expectation value of the
radial distribution of orbitals i.e. <r>.

I have attempted the simplest case that I could think of, the hydrogen atom
in a large cell. I used an RMT of 4.5 au so that a fraction 0.99 of the
charge lies inside the muffin tin. Then after converged SCF cycles I ran "x
lapwdm -up" with input:

-9.     Emin cutoff energy
1       number of atoms for which density matrix is calculated
1 1 0  index of 1st atom, number of L’s, L1
11 1   r-index, (l,s)-index


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