| Автор | Nianhua Peng |
| Автор | Jun Yuan |
| Автор | Dongning Zheng |
| Автор | Wei Yao Liang |
| Дата выпуска | 1991-01-01 |
| dc.description | Electrical resistivity, AC magnetic susceptibility, X-ray powder diffraction, EDAX and EELS near edge absorption, have been used to study a series of Ni substituted dense (mass density approximately 6.0 g/cm<sup>3</sup>) superconducting YBa<sub>2</sub>Cu<sub>3-x</sub>Ni<sub>x</sub>O<sub>7- delta </sub> with a wide range of x values. T<sub>c</sub> was found to decrease linearly with increasing Ni concentration. The authors have also found phase separation occurring at high Ni concentration due to the formation of Y<sub>2</sub>BaCuO<sub>5</sub>, Y<sub>2</sub>BaNiO<sub>5</sub> and NiO/BaO which seriously modifies the Ni concentration from its nominal values. For this reason many earlier measurements on the effects of Ni substitution on the physical properties of YBa<sub>2</sub>Cu<sub>3</sub>O<sub>7- delta </sub> may need to be re-examined and this paper attempts to correlate the above physical properties with actual Ni concentrations in the samples. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | On the effect of Ni substitution in superconducting YBa<sub>2</sub>Cu<sub>3</sub>O<sub>7- delta </sub> |
| Тип | paper |
| DOI | 10.1088/0953-2048/4/1S/090 |
| Electronic ISSN | 1361-6668 |
| Print ISSN | 0953-2048 |
| Журнал | Superconductor Science and Technology |
| Том | 4 |
| Первая страница | S313 |
| Последняя страница | S315 |
| Аффилиация | Nianhua Peng; Cambridge Univ., UK |
| Аффилиация | Jun Yuan; Cambridge Univ., UK |
| Аффилиация | Dongning Zheng; Cambridge Univ., UK |
| Аффилиация | Wei Yao Liang; Cambridge Univ., UK |
| Выпуск | 1S |
