WIEN2k: An APW+lo Program for Calculating the Properties of Solids

The Journal of Chemical Physics recently released an update on Most Read Articles from 2020. The article - WIEN2k: An APW+lo Program for Calculating the Properties of Solids has garnered the highest record of over 10,000 downloads.

Congratulations to all the researchers, including Dr. Robert Laskowski, Senior Scientist, Material Science & Chemistry department from IHPC.


The WIEN2k program is based on the augmented plane wave plus local orbitals (APW+lo) method to solve the Kohn–Sham equations of density functional theory. The APW+lo method, which considers all electrons (core and valence) self-consistently in a full-potential treatment, is implemented very efficiently in WIEN2k, since various types of parallelization are available and many optimized numerical libraries can be used. Many properties can be calculated, ranging from the basic ones, such as the electronic band structure or the optimized atomic structure, to more specialized ones such as the nuclear magnetic resonance shielding tensor or the electric polarization. After a brief presentation of the APW+lo method, we review the usage, capabilities, and features of WIEN2k (version 19) in detail. The various options, properties, and available approximations for the exchange-correlation functional, as well as the external libraries or programs that can be used with WIEN2k, are mentioned. References to relevant applications and some examples are also given.

Read the full article published on The Journal of Chemical Physics.