Abstract
The results of a theoretical study based on ab initio calculations of the polarization properties of AlN, GaN, and AlGaN semiconductors with the wurtzite structure are presented. The values of the spontaneous and piezoelectric polarizations, as well as the piezoelectric constants, are calculated for these nitride compounds. With the aim of further considering prospective heterostructures based on (Al,Ga,AlGa)N compounds, the charge densities at the AlN/GaN, AlGaN/AlN, and AlGaN/GaN interfaces and carrier concentration at the AlGaN/GaN heterointerface is estimated and compared with the experimental data.
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Original Russian Text © I.A. Supryadkina, K.K. Abgaryan, D.I. Bazhanov, I.V. Mutigullin, 2013, published in Fizika i Tekhnika Poluprovodnikov, 2013, Vol. 47, No. 12, pp. 1647–1652.
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Supryadkina, I.A., Abgaryan, K.K., Bazhanov, D.I. et al. Study of the polarizations of (Al,Ga,AlGa)N nitride compounds and the charge density of various interfaces based on them. Semiconductors 47, 1621–1625 (2013). https://doi.org/10.1134/S106378261312018X
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DOI: https://doi.org/10.1134/S106378261312018X