| Автор | Guanghan Cao |
| Автор | Yitai Qian |
| Автор | Xiaojun Li |
| Автор | Zuyao Chen |
| Автор | Chengyou Wang |
| Автор | Keqing Ruan |
| Автор | Yiming Qiu |
| Автор | Liezhao Cao |
| Автор | Yuan Ge |
| Автор | Yuheng Zhang |
| Дата выпуска | 1995-06-05 |
| dc.description | Polycrystalline samples of Y<sub>0.4</sub>Pr<sub>0.6</sub>Ba<sub>2</sub>Cu<sub>3</sub>O<sub>7- delta </sub> have been prepared and characterized by X-ray powder diffraction, differential thermal analysis and temperature dependence of resistivity and AC susceptibility. We observed that both superconductivity and metallic conductivity were revived at x>or=0.75, accompanied by an orthorhombic-to-tetragonal transition. The superconducting transition temperature could be further enhanced by increasing the Sr content, suggesting that there is an ion-size effect on T<sub>c</sub> at the Ba site. The results were discussed in terms of the Pr-O covalent bonding effect. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Revival of superconductivity in Y<sub>0.4</sub>Pr<sub>0.6</sub>Ba<sub>2</sub>Cu<sub>3</sub>O<sub>7- delta </sub> by the isovalent substitution of Sr |
| Тип | lett |
| DOI | 10.1088/0953-8984/7/23/002 |
| Electronic ISSN | 1361-648X |
| Print ISSN | 0953-8984 |
| Журнал | Journal of Physics: Condensed Matter |
| Том | 7 |
| Первая страница | L287 |
| Последняя страница | L292 |
| Аффилиация | Guanghan Cao; Dept. of Appl. Chem., Univ. of Sci. & Technol. of China, Hefei, China |
| Аффилиация | Yitai Qian; Dept. of Appl. Chem., Univ. of Sci. & Technol. of China, Hefei, China |
| Аффилиация | Xiaojun Li; Dept. of Appl. Chem., Univ. of Sci. & Technol. of China, Hefei, China |
| Аффилиация | Zuyao Chen; Dept. of Appl. Chem., Univ. of Sci. & Technol. of China, Hefei, China |
| Аффилиация | Chengyou Wang; Dept. of Appl. Chem., Univ. of Sci. & Technol. of China, Hefei, China |
| Аффилиация | Keqing Ruan; Dept. of Appl. Chem., Univ. of Sci. & Technol. of China, Hefei, China |
| Аффилиация | Yiming Qiu; Dept. of Appl. Chem., Univ. of Sci. & Technol. of China, Hefei, China |
| Аффилиация | Liezhao Cao; Dept. of Appl. Chem., Univ. of Sci. & Technol. of China, Hefei, China |
| Аффилиация | Yuan Ge; Dept. of Appl. Chem., Univ. of Sci. & Technol. of China, Hefei, China |
| Аффилиация | Yuheng Zhang; Dept. of Appl. Chem., Univ. of Sci. & Technol. of China, Hefei, China |
| Выпуск | 23 |
