How to build PAW atomic datasets for ABINIT using AtomPAW generator
To create PAW atomic datasets for ABINIT we use the AtomPAW atomic data generator.
From ABINIT version 5.8, it is included in the package as a plugin.
1. How to get AtomPAW executable
You can use one of these two possibilities:
2. How to use AtomPAW
1- Take a look at the user's guide for AtomPAW,
2- Follow ABINIT tutorial named PAW2. AtomPAW execution follows the steps described below:
3. How to check the validity of PAW atomic data
Everything is explained the user's guide.
The following remarks are quoted from the AtomPAW original paper:
Iteratively check the following quantities before accepting a given set of projectors and basis functions:
1- The PAW logarithmic derivatives for each atom should agree with the all-electron values within the energy range of interest. See files logderiv.i
2- The core electron density ncore should be sufficiently small for r>rc. See file density
3- The plane-wave cut-offs needed to converge the calculation (which can be determined with the help of the Fourier-space functions Fnili(q)), should be consistent with the computer resources available for the solid state calculations. See files tprod.i
4- For the material of interest, several solid state calculations should give reasonable results.
 A Projector Augmented Wave (PAW) code for electronic structure calculations, Part I: atompaw for generating atom-centered functions (local copy)
A. R. Tackett, N. A. W. Holzwarth and G. E. Matthews, Computer Physics Communications 135, 329-347 (2001)
 Orthogonal polynomial projectors for the projector augmented wave method of electronic structure calculations (local copy)
N. A. W. Holzwarth, G. E. Matthews, A. R. Tackett and R. B. Dunning, Phys. Rev. B 57, 11827-11830 (1998)
 Comparison of the PAW, pseudopotential, and LAPW formalisms for density functional calculations of solids (local copy)
N. A. W. Holzwarth, G. E. Matthews, R. B. Dunning, A. R. Tackett and Y. Zeng, Phys. Rev. B 55, 2005-2017 (1997)
 Real-space implementation of nonlocal pseudopotentials for 1st-principle total-energy calculations
R.D. King-Smith, M.C. Payne and J.S. Lin, Phys. Rev. B 44,13063 (1991)
 Implementation of the projector augmented-wave method in the ABINIT code: Application to the study of iron under pressure
M. Torrent, F. Jollet, F. Bottin, G. Zerah and X. Gonze, Computational Materials Science 42, 337 (2008)
 Electronic structure packages: two implementations of the Projector Augmented-Wave (PAW) formalism (local copy)
M. Torrent, N. A. W. Holzwarth, F. Jollet, D. Harris, N. Lepley and X. Xu, Computer Physics Communications 181, 1862 (2010)
In case of problem or questions contact the authors:
Département de Physique Théorique et Appliquée
Department of Physics
Wake Forest University, Winston-Salem (NC), USA