Transport studies on nanometer thick YBa2Cu3O7-δ multilayers using Y0.4Pr0.6Cu3o7 and PrBa2(cu0.8Ga0.2)3O7 as buffer layers

Ke Wu*, Udom Tipparach, Tar Pin Chen, Qi Li, X. H. Zeng, E. Wert, John L. Wagner, Quark Y. Chen, J. T. Wang, Hong Chang Yang, Herng Er Horng

*此作品的通信作者

研究成果: 雜誌貢獻期刊論文同行評審

1 引文 斯高帕斯(Scopus)

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
頁(從 - 到)3317-3322
頁數6
期刊International Journal of Modern Physics B
15
發行號24-25
DOIs
出版狀態已發佈 - 2001 10月 10
對外發佈

ASJC Scopus subject areas

  • 統計與非線性物理學
  • 凝聚態物理學

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