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Title: | Crystal structure, thermal and electrotransport properties of NdBa[1–x]Sr[x]FeCo[0.5]Cu[0.5]O[5+δ] (0.02 ≤ x ≤ 0.20) solid solutions |
Authors: | Klyndyuk, A. I. Zhuravleva, Ya. Yu. Gundilovich, N. N. |
Keywords: | layered perovskites thermal stability thermal expansion electrical conductivity thermopower слоистые перовскиты термическая стабильность тепловое расширение электрическая проводимость термоЭДС |
Issue Date: | 2021 |
Citation: | Klyndyuk, A. I. Crystal structure, thermal and electrotransport properties of NdBa[1–x]Sr[x]FeCo[0.5]Cu[0.5]O[5+δ] (0.02 ≤ x ≤ 0.20) solid solutions / A. I. Klyndyuk, Ya. Yu. Zhuravleva, N. N. Gundilovich // Chimica Techno Acta. - 2021, - Vol. 8(3), № 20218301. - P. 1-5. |
Abstract: | Using solid-state reactions method, the solid solutions of layered oxygen- deficient perovskites NdBa[1–x[Sr[x]FeCo[0.5]Cu[0.5]O[5+δ] (0.02 ≤ x ≤ 0.20) were prepared; their crystal structure, thermal stability, thermal expansion, electrical conductivity and thermopower were studied. It was found that NdBa[1 x]Sr[FeCo[0.5]Cu[0.5]O5[+δ ]phases crystallize in tetragonal syngony(space group P4/mmm) and are p-type semiconductors, whose conductivity mcharacter at high temperatures changed to the metallic one due to evolution from the samples of so-called weakly-bonded oxygen. Partial substitution of barium by strontium in NdBaFeCo[0.5]Cu[0.5]O[5+δ] leads to the small decreasing of unitcell parameters, thermal stability and thermopower of NdBa[1–x]Sr[x]FeCo[0.5]Cu[0.5]O5[+δ] solid solutions, increasing of their electrical conductivity values and slightly affects their linear thermal expansion coefficient and activation energy of electrical transport values. |
URI: | https://elib.belstu.by/handle/123456789/45586 |
Appears in Collections: | Статьи в зарубежных изданиях |
Files in This Item:
File | Description | Size | Format | |
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Klyndyuk_Crystal.pdf | 488.51 kB | Adobe PDF | View/Open |
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