Abstract
We compare the forces generated by various angle-dependent potentials and by ab initio band-structure calculations with a limited number of k points. In cells with 32 and 54 atoms we find substantial errors for all of the angle-dependent-force models, as well as for the band-structure forces with very few k points.
| Original language | English |
|---|---|
| Pages (from-to) | 5345-5348 |
| Number of pages | 4 |
| Journal | Physical Review B |
| Volume | 42 |
| Issue number | 8 |
| DOIs | |
| State | Published - 1990 |