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Second neighbor shells around Cu in oxygen-deficient and transition-metal-doped Y1Ba2Cu3O7−δ

✍ Scribed by J.B. Boyce; F. Bridges; T. Claeson; T.H. Geballe

Publisher
Elsevier Science
Year
1989
Tongue
English
Weight
186 KB
Volume
158
Category
Article
ISSN
0921-4526

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The oxygen isotope effect in Y Ba2 (Cu1−
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✍ 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