Energy gap in high-temperature superconductors BiSrCaCuO
V. M. DmitrievPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, KharkovA. L. Solov’evPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, KharkovA. I. DmitrenkoPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, KharkovL. A. IshchenkoPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, KharkovL. A. KotokPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, Kharkov
ABI
Аннотация
The temperature dependence of the energy gap Δ of the high-temperature superconducting ceramic Bi2Sr2.33Ca0.67Cu2Ox and its magnitude (2Δ(0)/kTc = 3.4–5.7) are determined by using a point contact formed between Nb and the superconductor.
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