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A remarkable T c -enhancement effect in Na-doped Y 1− x Na x Ba 2 Cu 2.7 Zn 0.3 O 7−δ

✍ Scribed by Dong, A F; Che, G C; Huang, W W; Jia, S L; Zhao, Z X

Book ID
121483604
Publisher
Institute of Physics
Year
2005
Tongue
English
Weight
331 KB
Volume
18
Category
Article
ISSN
0953-2048

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The oxygen isotope effect in Y Ba2 (Cu1−
The oxygen isotope effect in Y Ba2 (Cu1−x Cox)3 O7−δ
✍ Jürgen P. Franck; Stuart Harker; Ming Yu 📂 Article 📅 1994 🏛 Elsevier Science 🌐 English ⚖ 129 KB

We investigated the oxygen isotope effect in superconducting Co substituted YBCO. Co concentrations between 4 and 13% were used. The transition temperature T c falls monotonously to 22.7 K for x = 0.13. The oxygen isotope exponent n0 rises from n0 = 0.08 (4% Co) to n0 = 0.46 (x = 0.13%) at the lowes