Effect of oxygen deficit on temperature dependence of excess conductivity in Y₁Ba₂Cu₃O₇-δ single crystals
Evolution of the excess conductivity in Y₁Ba₂Cu₃O₇-δ single crystals has been studied under stepwise oxygen removal by heat treatment. The concentration dependence of the coherence length along С axis εc(0) on the oxygen content has been obtained. The oxygen content reduction from δ ≤ 0.1 to δ ≈...
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| Дата: | 2006 |
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| Автори: | , , , |
| Формат: | Стаття |
| Мова: | English |
| Опубліковано: |
НТК «Інститут монокристалів» НАН України
2006
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| Назва видання: | Functional Materials |
| Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/140076 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | Effect of oxygen deficit on temperature dependence of excess conductivity in Y₁Ba₂Cu₃O₇-δ single crystals / A.V. Bondarenko, R.V. Vovk, M.A. Obolensky, N.N. Chebotaev // Functional Materials. — 2006. — Т. 13, № 2. — С. 245-248. — Бібліогр.: 11 назв. — англ. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| Резюме: | Evolution of the excess conductivity in Y₁Ba₂Cu₃O₇-δ single crystals has been studied under stepwise oxygen removal by heat treatment. The concentration dependence of the
coherence length along С axis εc(0) on the oxygen content has been obtained. The oxygen content reduction from δ ≤ 0.1 to δ ≈ 0.23 has been shown to result in a substantial broadening of the temperature interval where the excess conductivity takes place. The εc(0) value increases more than twice and the 2D-3D crossover point is shifted in temperature. |
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