SUPERCONDUCTING PROPERTIES OF TITANIUM AND NICKEL SUBSTITUTED YBA2(CU3-YMY)O7-X

Date

1991-08-31

Author

Özenbaş, Ahmet Macit

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The influence of substituting Ti and Ni for Cu on the superconducting properties of YBa2Cu3O7-x is reported. In the series YBa2(Cu3-yMy)O7-x where M = Ni and Ti, we changed y from 0.05 to 0.20. The temperature dependence of the resistivity indicated that all the samples were superconductors with Tc in the range 83 to 93 K for M = Ti. A second phase identified as BaTi4O9 was also observed. In addition, the orthorhombic-to-tetragonal transition temperature was found to decrease with increasing amounts of titanium. By contrast, Ni, which dissolves completely up to y = 0.20 caused a sharp decrease in Tc. All the results are discussed in the framework of 1D conduction mechanism theory.

Subject Keywords

Materials science, Multidisciplinary, Physics, Condensed matter, Resistivity curve, Local magnetic moment, Critical transition temperature, Pair breaking effect, Nickel substitution

URI

https://hdl.handle.net/11511/62618

Collections

Department of Metallurgical and Materials Engineering, Conference / Seminar

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Citation Formats

A. M. Özenbaş, “SUPERCONDUCTING PROPERTIES OF TITANIUM AND NICKEL SUBSTITUTED YBA2(CU3-YMY)O7-X,” 1991, vol. 209, p. 685, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/62618.