First-principles optical calculations of AsNMg3 and SbNMg3

The structural, electronic and optical properties of antiperovskite semiconductors AsNMg3 and SbNMg3 have been studied using the full-potential augmented plane wave plus local-orbital (APW+lo) method. The exchange correlation has been treated using the generalized gradient approximation (GGA). The e...

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Veröffentlicht in:Materials science & engineering. B, Solid-state materials for advanced technology Solid-state materials for advanced technology, 2006-06, Vol.130 (1-3), p.101-107
1. Verfasser: Okoye, C.M.I.
Format: Artikel
Sprache:eng
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Zusammenfassung:The structural, electronic and optical properties of antiperovskite semiconductors AsNMg3 and SbNMg3 have been studied using the full-potential augmented plane wave plus local-orbital (APW+lo) method. The exchange correlation has been treated using the generalized gradient approximation (GGA). The equilibrium lattice constant and other structural properties have been determined. The AsNMg3 is found to be a direct band gap semiconductor while SbNMg3 is indirect. The results for electronic band structures, density of states, charge densities as well as optical properties are presented and discussed.
ISSN:0921-5107
DOI:10.1016/j.mseb.2006.02.066