Rubidium

Datasets:

name

valence electrons

frozen core electrons

default

9

28

9 valence electrons

Radial cutoffs and eigenvalues:

id

occ

eig [eV]

cutoff [Bohr]

1s

2

-15025.358

2s

2

-2007.455

2p

6

-1780.314

3s

2

-297.880

3p

6

-224.891

3d

10

-103.967

4s

2

-31.879

2.60

5s

1

-2.231

2.60

4p

6

-15.966

2.40

p

0

11.245

2.40

d

0

0.000

2.30

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

Egg-box errors in finite-difference mode:

grid-spacing [Å]

energy error [eV]

0.16

0.0018

0.18

0.0016

0.20

0.0042