Universality of the Empty-Lattice Approximation to Predict the Topology of Energy Spectra of High-Symmetry Crystals and Superlattices Based upon Them

• Authors: M. Sznajder , D. Bercha , K. Glukhov , I. Slipukhina
• Languages of publication: EN

Abstracts

EN

O_h^7, T_d^2 and O_h^5 symmetry crystals were discussed to demonstrate universality of the empty-lattice approximation to obtain the topology and symmetry of the elementary energy bands creating the valence band of those crystals and to predict a localization of the maximum of valence electron density distribution in the unit cell. The elaborated concept of the elementary energy bands was applied to the (GaAs)_5/(AlAs)_5 superlattice and ordered solid solution Pb_{0.5}Sn_{0.5}S.

Keywords

EN

71.20.Nr; 71.15.Mb; 71.20.Mq; 73.21.Cd; 61.50.Ah

Discipline

• 61.50.Ah: Theory of crystal structure, crystal symmetry; calculations and modeling
• 71.15.Mb: Density functional theory, local density approximation, gradient and other corrections
• 71.20.Mq: Elemental semiconductors
• 73.21.Cd: Superlattices
• 71.20.Nr: Semiconductor compounds

• Journal: Acta Physica Polonica A
• Year: 2006
• Volume: 110
• Issue: 3
• Pages: 369-378

Dates

published

2006-09

received

2006-06-17

Contributors

author

M. Sznajder

• Institute of Physics, University of Rzeszów, Rejtana 16a, 35-310 Rzeszów, Poland

author

D. Bercha

• Institute of Physics, University of Rzeszów, Rejtana 16a, 35-310 Rzeszów, Poland

author

K. Glukhov

• Institute of Physics and Chemistry of Solid State, Uzhgorod National University, 54 Voloshin St., 88000 Uzhgorod, Ukraine

author

I. Slipukhina

• Institute of Physics and Chemistry of Solid State, Uzhgorod National University, 54 Voloshin St., 88000 Uzhgorod, Ukraine

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Identifiers

DOI

10.12693/APhysPolA.110.369