| Автор | D Sen |
| Автор | S K Ghatak |
| Автор | K L Chopra |
| Автор | D Bhattacharya |
| Дата выпуска | 1991-03-04 |
| dc.description | The effects of silver additive on the superconducting properties of YBa<sub>2</sub>Cu<sub>3+y</sub>O<sub>7- delta </sub>:Ag<sub>x</sub> for x=0.1, 0.3, 0.6 and 1.2 are studied by measuring the real and imaginary components of the magnetic response in an AC field. The data are fitted to Bean's critical state model and are used to obtain the macroscopic critical current density. The magnetic susceptibility and critical current density are found to depend on the silver content whereas T<sub>c</sub> remains essentially unchanged. For x=1.2 the critical current density sharply increases below 77 K. The results suggest that the silver improves the properties of grain boundaries and enhances the intergranular coupling. The real part of the magnetic response is found to be a function of H<sub>a</sub>/H*, where H* is the value of the field when the critical-state profile reaches the centre of the specimen. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Critical current density and magnetic behaviour of superconducting YBa<sub>2</sub>Cu<sub>3+y</sub>O<sub>7- delta </sub>: Ag<sub>x</sub> composite |
| Тип | paper |
| DOI | 10.1088/0953-8984/3/9/012 |
| Electronic ISSN | 1361-648X |
| Print ISSN | 0953-8984 |
| Журнал | Journal of Physics: Condensed Matter |
| Том | 3 |
| Первая страница | 1181 |
| Последняя страница | 1187 |
| Аффилиация | D Sen; Indian Inst. of Technol., Kharagpur, India |
| Аффилиация | S K Ghatak; Indian Inst. of Technol., Kharagpur, India |
| Аффилиация | K L Chopra; Indian Inst. of Technol., Kharagpur, India |
| Аффилиация | D Bhattacharya; Indian Inst. of Technol., Kharagpur, India |
| Выпуск | 9 |
