Fri, 14 Mar 2008 B. Yanchitsky has written:
Atom name Z E[1]-E[i] (eV)
Be(hcp)4 -4.01952760
Al(fcc) 13 -9.1210168
Cu(fcc) 29 -32.5998664
Au(fcc) 79 -57.3670440
this is just wrong, interatomic potential is something like 0.01-0.1 eV,
and
I have not followed in detail the sometimes unclear discussions on that topic,
but I doubt that energy zeros or supercell sizes for single atoms are a real
issue (the latter may be both, a fundamental and a numerical issue, when you
need superior precision, but not for normal accuracy).
lstart:
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