Year: 2025
Type: article
Abstract: This paper presents the results of X-ray diffraction and electrophysical studies of PbSb2Te4 crystals grown by the Chokhralsky method. The phase composition and crystal structure of ingots, including those doped with a donor admixture of copper, are discussed from the qualitative and quantitative perspectives. The samples are a periodic structure. They are multiphase, with PbSb2Te4 and Sb2Te3 as dominant phases. The presence of intrinsic electrically active point defects causes a high concentration of holes p ≈ 3.2 × 1020 cm-3. The temperature dependences of the kinetic coefficients indicate a complex structure of the valence band. Impurity atoms occupy vacancies in the metal sublattice during alloying and form chemical compounds with Sb and Te atoms.
Source: Physics of Complex Systems
Authors: Sergei A. Nemov, Valentina D. Andreeva, Aleksei Yu. Aliabev
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W7103895346