The Superconducting Properties and X-Ray Absorption Structure Data of BaPb0.75Bi0.25O3 at Oxygen Deficiency Научная публикация
Конференция |
4th International Conference on Materials and Mechanisms of High Temperature Superconductivity 05-09 июл. 1994 , Grenoble |
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Журнал |
Physica C: Superconductivity and its Applications
ISSN: 0921-4534 , E-ISSN: 1873-2143 |
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Вых. Данные | Год: 1994, Том: 235-240, Номер: 2, Страницы: 1043-1044 Страниц : 2 DOI: 10.1016/0921-4534(94)91746-9 | ||||
Авторы |
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Организации |
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Информация о финансировании (1)
1 | International Science Foundation | MG 2000 |
Реферат:
The superconducting properties of BaPb0.75Bi0.25O3-delta have been studied through the transport measuring and x-ray absorption spectroscopy O(AS) as a function of oxygen content deficiency ( 0 less than or equal to delta less than or equal to 0.15). We found the appearance of semiconducting behaviour rho(T) just at delta similar to 0.02. However the superconducting transition takes place at T-c similar to 7 divided by 11K up to delta less than or equal to 0.15 according to ac susceptibility measurements. The metal-insulator transition occurs firstly at the boundaries of the ceramic grains. The local and electronic structures of BaPb0.75Bi0.O-25(3-delta) have been defined by XAS on L(3) Pb(Bi) edges. The Pb-O octahedra does not practically change while the oxygen leaves the Bi-O sites. The superconductivity deterioration at oxygen deficiency is accompanied by changes in electronic structure of Bi-O complexes.
Библиографическая ссылка:
Ignatov A.Y.
, Menushenkov A.P.
, Klementev K.V.
, Bratukhin P.B.
, Kochubey D.I.
The Superconducting Properties and X-Ray Absorption Structure Data of BaPb0.75Bi0.25O3 at Oxygen Deficiency
Physica C: Superconductivity and its Applications. 1994. V.235-240. N2. P.1043-1044. DOI: 10.1016/0921-4534(94)91746-9 WOS Scopus РИНЦ
The Superconducting Properties and X-Ray Absorption Structure Data of BaPb0.75Bi0.25O3 at Oxygen Deficiency
Physica C: Superconductivity and its Applications. 1994. V.235-240. N2. P.1043-1044. DOI: 10.1016/0921-4534(94)91746-9 WOS Scopus РИНЦ
Даты:
Опубликована в печати: | 1 дек. 1994 г. |
Опубликована online: | 4 окт. 2002 г. |
Идентификаторы БД:
Web of science | WOS:A1994QC69400161 |
Scopus | 2-s2.0-4243823404 |
РИНЦ | 31005460 |
Chemical Abstracts | 1995:321744 |
Chemical Abstracts (print) | 122:253318 |
OpenAlex | W2151081656 |