| Автор | S K Malik |
| Автор | C V Tomy |
| Автор | A M Umarji |
| Автор | D T Adroja |
| Автор | Ram Prasad |
| Автор | N C Soni |
| Автор | A Mohan |
| Автор | C K Gupta |
| Дата выпуска | 1987-07-10 |
| dc.description | The presence of mixed-valent copper and the nearly two-dimensional character of the K<sub>2</sub>NiF<sub>4</sub> structure are considered important for the occurrence of superconductivity in La<sub>1.8</sub>Sr<sub>0.2</sub>CuO<sub>4</sub> (T<sub>c</sub> onset 36 K). The authors have investigated the effect of partial replacement of mixed-valent Cu by monovalent Ag on the superconductivity of this system by studying the compositions La<sub>1.8</sub>Sr<sub>0.2</sub>Cu<sub>1-x</sub>Ag<sub>x</sub>O<sub>4</sub> (0.0<or=x<or=0.15). All these have the tetragonal K<sub>2</sub>NiF<sub>4</sub>-type structure. In spite of the charge imbalance caused by Ag substitution, the T<sub>c</sub> is found to decrease rather gradually from 36 K for x=0.0 to 20 K for x=0.15. A small increase in the Pauli susceptibility is also observed on partial replacement of Cu by Ag in the above system. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Superconductivity in the Ag-substituted La<sub>1.8</sub>Sr<sub>0.2</sub>CuO<sub>4</sub> oxide system |
| Тип | lett |
| DOI | 10.1088/0022-3719/20/19/008 |
| Print ISSN | 0022-3719 |
| Журнал | Journal of Physics C: Solid State Physics |
| Том | 20 |
| Первая страница | L417 |
| Последняя страница | L420 |
| Аффилиация | S K Malik; Tata Inst. of Fundamental Res., Bombay, India |
| Аффилиация | C V Tomy; Tata Inst. of Fundamental Res., Bombay, India |
| Аффилиация | A M Umarji; Tata Inst. of Fundamental Res., Bombay, India |
| Аффилиация | D T Adroja; Tata Inst. of Fundamental Res., Bombay, India |
| Аффилиация | Ram Prasad; Tata Inst. of Fundamental Res., Bombay, India |
| Аффилиация | N C Soni; Tata Inst. of Fundamental Res., Bombay, India |
| Аффилиация | A Mohan; Tata Inst. of Fundamental Res., Bombay, India |
| Аффилиация | C K Gupta; Tata Inst. of Fundamental Res., Bombay, India |
| Выпуск | 19 |
