S. A. Nemov, V. D. Andreeva, A. V. Povolotskiy, A. Yu. Alyab’ev
{"title":"Study of the Structure of Composite Materials Based on PbSb2Te4 Obtained by the Czochralski Method","authors":"S. A. Nemov, V. D. Andreeva, A. V. Povolotskiy, A. Yu. Alyab’ev","doi":"10.1134/S1087659624600467","DOIUrl":null,"url":null,"abstract":"<p>Research on PbSb<sub>2</sub>Te<sub>4</sub> composite material samples, obtained by the Czochralski method, is continued. The multiphase structure of the material is confirmed. Based on the analysis of X-ray studies, the predominance of PbSb<sub>2</sub>Te<sub>4</sub> (70–80%) and Sb<sub>2</sub>Te<sub>3</sub> (20–30%) phases is found. Traces of (CuSb)Te<sub>2</sub> phases with a rhombohedral structure and a hexagonal phase of Sb<sub>2</sub>Te<sub>2</sub> are detected. The carrier concentration is reduced by doping the samples with copper; the impurity atoms are located in the Van der Waals gap between the layers of the main phases. With the copper content in the initial charge increasing from 0.5 to 1 at %, the carrier concentration does not decrease further.</p>","PeriodicalId":580,"journal":{"name":"Glass Physics and Chemistry","volume":"50 5","pages":"553 - 560"},"PeriodicalIF":0.6000,"publicationDate":"2025-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Glass Physics and Chemistry","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1134/S1087659624600467","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"MATERIALS SCIENCE, CERAMICS","Score":null,"Total":0}
引用次数: 0
Abstract
Research on PbSb2Te4 composite material samples, obtained by the Czochralski method, is continued. The multiphase structure of the material is confirmed. Based on the analysis of X-ray studies, the predominance of PbSb2Te4 (70–80%) and Sb2Te3 (20–30%) phases is found. Traces of (CuSb)Te2 phases with a rhombohedral structure and a hexagonal phase of Sb2Te2 are detected. The carrier concentration is reduced by doping the samples with copper; the impurity atoms are located in the Van der Waals gap between the layers of the main phases. With the copper content in the initial charge increasing from 0.5 to 1 at %, the carrier concentration does not decrease further.
期刊介绍：
Glass Physics and Chemistry presents results of research on the inorganic and physical chemistry of glass, ceramics, nanoparticles, nanocomposites, and high-temperature oxides and coatings. The journal welcomes manuscripts from all countries in the English or Russian language.
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