摘要
We have fabricated PrBa2[Cu1-xGax]3O7 (PBGCO) ceramic samples for x = 0.05, 0.10, 0.15 and 0.20. The electrical resistivities of these samples are many orders of magnitude higher than that of PrBa2Cu3O7 (Pr123) while the other physical properties remain much the same. PBGCO therefore may be a possible buffer layer for YBa2Cu3O7-δ (Y123) superlattices/multilayers. For this reason YBa2Cu3O7-δ/PrBa2 (Cu0.8Ga0.2)3O7 (Y123/PBCGO) and YBa2Cu3O7-δ/Y0.4 Pr0.6Ba2Cu3O7 (Y123/YPBCO) superlattices were fabricated and their transport properties were studied. It is found that although PBGCO is better for insulating Y123 films in trilayers, inter-Y123 layer coupling exists between separated Y123 layer.
原文 | 英語 |
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頁(從 - 到) | 3317-3322 |
頁數 | 6 |
期刊 | International Journal of Modern Physics B |
卷 | 15 |
發行號 | 24-25 |
DOIs | |
出版狀態 | 已發佈 - 2001 10月 10 |
ASJC Scopus subject areas
- 統計與非線性物理學
- 凝聚態物理學