Cobalt

Datasets:

name

valence electrons

frozen core electrons

default

9

18

9 valence electrons

Radial cutoffs and eigenvalues:

id

occ

eig [eV]

cutoff [Bohr]

1s

2

-7590.091

2s

2

-898.765

2p

6

-769.968

3s

2

-102.374

3p

6

-65.642

4s

2

-5.469

1.90

4p

0

-1.277

2.00

3d

7

-8.204

1.90

s

0

21.743

1.90

p

0

25.934

2.00

d

0

19.007

1.90

The figure shows convergence of the absolute energy (blue line) and atomization energy (orange line) of a Co dimer relative to completely converged numbers (plane-wave calculation at 1500 eV). Also shown are finite-difference and LCAO (dzp) calculations at gridspacings 0.143 Å, 0.167 Å and 0.200 Å.

../_images/Co.default.png

Egg-box errors in finite-difference mode:

grid-spacing [Å]

energy error [eV]

0.16

0.0008

0.18

0.0067

0.20

0.0092