Titanium

Datasets:

name

valence electrons

frozen core electrons

default

12

10

12 valence electrons

Radial cutoffs and eigenvalues:

id

occ

eig [eV]

cutoff [Bohr]

1s

2

-4867.684

2s

2

-536.851

2p

6

-444.269

3s

2

-62.623

2.40

4s

2

-4.466

2.40

3p

6

-38.862

2.00

4p

0

-1.467

2.00

3d

2

-4.258

2.00

d

0

22.953

2.00

The figure shows convergence of the absolute energy (blue line) and atomization energy (orange line) of a Ti 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/Ti.default.png

Egg-box errors in finite-difference mode:

grid-spacing [Å]

energy error [eV]

0.16

0.0033

0.18

0.0054

0.20

0.0063