The spin states of cobalt ions and thermo-e.m.f. in erbium and holmium cobaltites
The temperature dependences of thermo-e.m.f. for Er₁₋ₓSrₓCoO₃₋δ, Ho₁₋ₓSrxCoO₃₋δ, Er₁₋ₓCaxCoO₃₋δ, Ho₁₋ₓCaxCoO₃₋δ ceramics have been studied in the temperature range of 300 K (of 100 K for some materials) to 600 K. The Zeebeck coefficient for Sr doped samples is lowered as the strontium content increa...
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| Дата: | 2009 |
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| Автори: | , , , |
| Формат: | Стаття |
| Мова: | English |
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НТК «Інститут монокристалів» НАН України
2009
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| Назва видання: | Functional Materials |
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| Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/137727 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | The spin states of cobalt ions and thermo-e.m.f. in erbium and holmium cobaltites // V.F. Khirnyi, A.A. Kozlovskii, A.V. Semenov, V.M. Puzikov // Functional Materials. — 2009. — Т. 16, № 2. — С. 150-154. — Бібліогр.: 20 назв. — англ. |
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irk-123456789-1377272018-06-18T03:08:45Z The spin states of cobalt ions and thermo-e.m.f. in erbium and holmium cobaltites Khirnyi, V.F. Kozlovskii, A.A. Semenov, A.V. Puzikov, V.M. Characterization and properties The temperature dependences of thermo-e.m.f. for Er₁₋ₓSrₓCoO₃₋δ, Ho₁₋ₓSrxCoO₃₋δ, Er₁₋ₓCaxCoO₃₋δ, Ho₁₋ₓCaxCoO₃₋δ ceramics have been studied in the temperature range of 300 K (of 100 K for some materials) to 600 K. The Zeebeck coefficient for Sr doped samples is lowered as the strontium content increases and the temperature rises. It has been shown that the 3d level splitting and the charge disproportionation of cobalt ions is to be taken into account to explain the above-mentioned behavior. Досліджено температурні залежності термо-ЕРС керамік Er₁₋ₓSrₓCoO₃₋δ, Ho₁₋ₓSrxCoO₃₋δ, Er₁₋ₓCaxCoO₃₋δ та Ho₁₋ₓCaxCoO₃₋δ в області температур від 300 К (для деяких від 100 К) до 600 К. Коефіцієнт 3еєбека Sr-легованих зразків знижується при зростанні вмісту стронцію та температури. Показано, що для пояснення такої поведінки необхідно враховувати розщеплення 3d-рівнів та зарядову диспропорціоналізацію іонів кобальту. Исследованы температурные зависимости термо-ЭДС керамик Er₁₋ₓSrₓCoO₃₋δ, Ho₁₋ₓSrxCoO₃₋δ, Er₁₋ₓCaxCoO₃₋δ, Ho₁₋ₓCaxCoO₃₋δ в области температур от 300 К (для некоторых от 100 К) до 600 К. Коэффициент 3еебека Sr-легированных образцов понижается при увеличении содержания стронция и температуры. Показано, что для объяснения такого поведения необходимо учитывать расщепление 3d-уровней и зарядовую диспропорционализацию ионов кобальта. 2009 Article The spin states of cobalt ions and thermo-e.m.f. in erbium and holmium cobaltites // V.F. Khirnyi, A.A. Kozlovskii, A.V. Semenov, V.M. Puzikov // Functional Materials. — 2009. — Т. 16, № 2. — С. 150-154. — Бібліогр.: 20 назв. — англ. 1027-5495 http://dspace.nbuv.gov.ua/handle/123456789/137727 en Functional Materials НТК «Інститут монокристалів» НАН України |
| institution |
Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| collection |
DSpace DC |
| language |
English |
| topic |
Characterization and properties Characterization and properties |
| spellingShingle |
Characterization and properties Characterization and properties Khirnyi, V.F. Kozlovskii, A.A. Semenov, A.V. Puzikov, V.M. The spin states of cobalt ions and thermo-e.m.f. in erbium and holmium cobaltites Functional Materials |
| description |
The temperature dependences of thermo-e.m.f. for Er₁₋ₓSrₓCoO₃₋δ, Ho₁₋ₓSrxCoO₃₋δ, Er₁₋ₓCaxCoO₃₋δ, Ho₁₋ₓCaxCoO₃₋δ ceramics have been studied in the temperature range of 300 K (of 100 K for some materials) to 600 K. The Zeebeck coefficient for Sr doped samples is lowered as the strontium content increases and the temperature rises. It has been shown that the 3d level splitting and the charge disproportionation of cobalt ions is to be taken into account to explain the above-mentioned behavior. |
| format |
Article |
| author |
Khirnyi, V.F. Kozlovskii, A.A. Semenov, A.V. Puzikov, V.M. |
| author_facet |
Khirnyi, V.F. Kozlovskii, A.A. Semenov, A.V. Puzikov, V.M. |
| author_sort |
Khirnyi, V.F. |
| title |
The spin states of cobalt ions and thermo-e.m.f. in erbium and holmium cobaltites |
| title_short |
The spin states of cobalt ions and thermo-e.m.f. in erbium and holmium cobaltites |
| title_full |
The spin states of cobalt ions and thermo-e.m.f. in erbium and holmium cobaltites |
| title_fullStr |
The spin states of cobalt ions and thermo-e.m.f. in erbium and holmium cobaltites |
| title_full_unstemmed |
The spin states of cobalt ions and thermo-e.m.f. in erbium and holmium cobaltites |
| title_sort |
spin states of cobalt ions and thermo-e.m.f. in erbium and holmium cobaltites |
| publisher |
НТК «Інститут монокристалів» НАН України |
| publishDate |
2009 |
| topic_facet |
Characterization and properties |
| url |
http://dspace.nbuv.gov.ua/handle/123456789/137727 |
| citation_txt |
The spin states of cobalt ions and thermo-e.m.f. in erbium and holmium cobaltites // V.F. Khirnyi, A.A. Kozlovskii, A.V. Semenov, V.M. Puzikov // Functional Materials. — 2009. — Т. 16, № 2. — С. 150-154. — Бібліогр.: 20 назв. — англ. |
| series |
Functional Materials |
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