Journal of Physical Studies 12(3), Article 3701 [4 pages] (2008) DOI: https://doi.org/10.30970/jps.12.3701 INFLUENCE OF NON-PARABOLIC DISPERSION RELATION ON THE CHARACTERISTICS OF WURTZITE-STRUCTURE CRYSTALS P. M. Gorley1, O. O. Galochkina1, P. P. Horley{1,4}, Yu. V. Vorobiev2, J. Gonzalez-Hernandez3 1Chernivtsi National University, 2 Kotsyubynsky St., Chernivtsi, Ukraine, 58012 2CINVESTAV Unidad Queretaro, Libramiento Norponiente 2000, 76230, Queretaro, Mexico 3CIMAV, Miguel de Cervantes 120, Complejo Industrial Chihuahua, 31109, Chihuahua, Mexico 4CFIF, Instituto Superior Tecnico, Av. Rovisco Pais, 1049-001, Lisbon, Portugal

The paper reports the investigation results concerning the influence of $\textbf k$-linear term in dispersion relation $E(\textbf k)$ on the magnitude and temperature dependence of concentration and hole mobility for three valence bands of wurtzite-structure crystals. The calculations were performed for the non-degenerated carrier gas statistics under relaxation time approximation, also accounting for the simultaneous scattering of holes over the acoustic and optical oscillations of the crystalline lattice. $p$-CdSe was chosen as a model material due to its well-determined parameters of energy bands in the vicinity of the valence band extrema. A comparison of the calculated results and experimental data proved that the lower spin-split band $Γ_7^+$ has almost no influence on the total hole concentration of $p$-CdSe at the temperatures 300\,K\,$ PACS number(s): 71.20.Nr, 71.55.Gs

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