The paper presents the results of computer modeling of the band structure of KF and LiF in various spatial groups at a temperature of 0 K. Тo reduce the computational time, pseudopotentials were used, which took into account only the electrons involved in the binding. All computationin this paper were performed using spin polarization on magnetic ions with high spin ferromagnetic initialization. Modeling of the characteristics is implemented in the Burai 1.3 program, as well as a site that allows you to generate CIF files materialsproject.org. It was found that the use of pseudopotentials reduced the number of electrons, as well as reduced the required cutoff energy, which had a rescheduling value in the calculations based on plane waves. The results obtained are fundamental and can be useful in the study of nanocrystals.
A. LUSHCHIK
Doctor of Physical and Mathematical Sciences, Professor University of Tartu of Estonia (Tartu, Estonia)
https://orcid.org/0000-0003-2035-3420
K.SH. SHUNKEYEV
Doctor of Physical and Mathematical Sciences, Professor K. Zhubanov Aktobe Regional University
https://orcid.org/0000-0002-3860-397X
M.K. OSPANOV
Aktobe Regional University named K. Zhubanov, Аktobe
A.S. ISTLYAUP
Aktobe Regional University named K. Zhubanov, Аktobe
L.N. MYASNIKOVА
Candidate of Physical and Mathematical Sciences, Associate Professor Aktobe Regional University named after K. Zhubanov
https://orcid.org/0000-0003-3326-7206
- Мясникова Л.Н., Истляуп А.С., Сергеев Д.М. Computer simulation of the density of the state of the NaF nanocrystal // Вестник КазНУ. Серия физика. – 2019. – №1 (68). – С. 74-80.
- Myasnikova L., Istlyaup A., Sergeyev D., Zhanturina N., Shunkeyev K., Popov A. Computer simulations of the band structure and density of states of the linear chairs of NaCl ions // Latvian Journal of Physics and Technical Sciences. – 2019. – N 4. – P. 49-56.
- Istlyaup A., Myasnikova L. Сomputer simulation of the density of states and the calculation of the total energy nanocrystals CsI and CsCl // Вестник АРГУ им. К. Жубанова, Актобе. – 2018. – №4(54).– С. 19-24.
- Jain A., Hautier G., Moore C., Ong S.P., Fischer C., Mueller T., Persson K.A., Ceder G. High-Throughput Infrastructure for Density Functional Theory Calculations // Computational Materials Science. – 2011. – Vol. 50. – P. 2295-2310.
- Jain A., Hautier G., Ong S.P., Moore C., Fischer C., Persson K.A., Ceder G. Formation Enthalpies by Mixing GGA and GGA + U calculations // Physical Review B. – 2011. – Vol. – P. 115-121.
- Godby R., Schluter M., Sham L.J. Self-energy operators and exchange-correlation potentials in semiconductors // Physical Review B. – 1988. – Vol. 37. – P. 229-235.
- Gopikrishnan C.R., Jose D., Datta A. Electronic structure, lattice energies and Born exponents for alkali halides from first principles // AIP Advances. – 2012. – Vol. 2. – 012131.
- https://materialsproject.org