Energy spectrum of (Sn0.65Pb0.35)0.95Ge0.05Te solid solutions

Autor:	V. I. Proshin, Sergey A. Nemov, P. A. Osipov, S. F. Musikhin
Rok vydání:	2000
Předmět:	Maxima and minima Range (particle radiation) Materials science Solid-state physics Condensed matter physics Electrical resistivity and conductivity Saddle point Energy spectrum Valence band Condensed Matter Physics Electronic Optical and Magnetic Materials Solid solution
Zdroj:	Physics of the Solid State. 42:638-640
ISSN:	1090-6460 1063-7834
DOI:	10.1134/1.1131262
Popis:	The paper reports the study on the resistivity ρ and thermoemf S of the (Sn0.65Pb0.35)0.95Ge0.05Te solid solution layers. The dependences of ρ and S on the hole concentrations in the range 3×1019–2×1021 cm−3 exhibit jumps in the resistivity and thermoemf minima at close hole concentrations p1≈9×1019 cm−3, p2≈2.5×1020 cm−3, and p3≈4.5×1020 cm−3. The observed jumps and minima suggest a complex structure of the valence band and the presence of critical points in the energy spectrum of holes. According to the data for SnTe, the critical points in the energy spectrum at the given hole concentrations are identified as the Σ-extremum, saddle point LΣ, and Δ-extremum, respectively.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::7721a085a81b37da36ba330d30473a56 https://doi.org/10.1134/1.1131262 Zobrazit plný text záznamu Full text from SpringerLink