The oxygen isotope effect in Y Ba2 (Cu1−
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Jürgen P. Franck; Stuart Harker; Ming Yu
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Article
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1994
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Elsevier Science
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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